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44218940 = 2252210947
BaseRepresentation
bin1010100010101…
…1101000111100
310002012112222112
42220223220330
542310001230
64215433152
71044566123
oct250535074
9102175875
1044218940
1122a62387
12129857b8
139212c6c
145c30aba
153d36d95
hex2a2ba3c

44218940 has 12 divisors (see below), whose sum is σ = 92859816. Its totient is φ = 17687568.

The previous prime is 44218897. The next prime is 44218943. The reversal of 44218940 is 4981244.

44218940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 44218897 and 44218906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44218943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105454 + ... + 1105493.

It is an arithmetic number, because the mean of its divisors is an integer number (7738318).

Almost surely, 244218940 is an apocalyptic number.

It is an amenable number.

44218940 is an abundant number, since it is smaller than the sum of its proper divisors (48640876).

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

44218940 is a wasteful number, since it uses less digits than its factorization.

44218940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210956 (or 2210954 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 44218940 is about 6649.7323254399. The cubic root of 44218940 is about 353.6194213959.

Subtracting from 44218940 its reverse (4981244), we obtain a square (39237696 = 62642).

The spelling of 44218940 in words is "forty-four million, two hundred eighteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 2210947 4421894 8843788 11054735 22109470 44218940