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44020440420 = 223511443150559
BaseRepresentation
bin101000111111110100…
…101001110101100100
311012121212020001221020
4220333310221311210
51210123213043140
632120034451140
73115603366305
oct507764516544
9135555201836
1044020440420
111773a433480
128646433ab0
1341c6cac9a8
1421b85227ac
1512299486d0
hexa3fd29d64

44020440420 has 96 divisors (see below), whose sum is σ = 134766858240. Its totient is φ = 10647461760.

The previous prime is 44020440403. The next prime is 44020440427. The reversal of 44020440420 is 2404402044.

It is not an unprimeable number, because it can be changed into a prime (44020440427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217101 + ... + 367659.

It is an arithmetic number, because the mean of its divisors is an integer number (1403821440).

Almost surely, 244020440420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44020440420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67383429120).

44020440420 is an abundant number, since it is smaller than the sum of its proper divisors (90746417820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44020440420 is a wasteful number, since it uses less digits than its factorization.

44020440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151025 (or 151023 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 44020440420 its reverse (2404402044), we get a palindrome (46424842464).

The spelling of 44020440420 in words is "forty-four billion, twenty million, four hundred forty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 443 660 886 1329 1772 2215 2658 4430 4873 5316 6645 8860 9746 13290 14619 19492 24365 26580 29238 48730 58476 73095 97460 146190 150559 292380 301118 451677 602236 752795 903354 1505590 1656149 1806708 2258385 3011180 3312298 4516770 4968447 6624596 8280745 9033540 9936894 16561490 19873788 24842235 33122980 49684470 66697637 99368940 133395274 200092911 266790548 333488185 400185822 666976370 733674007 800371644 1000464555 1333952740 1467348014 2000929110 2201022021 2934696028 3668370035 4001858220 4402044042 7336740070 8804088084 11005110105 14673480140 22010220210 44020440420