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44406508420 = 2252220325421
BaseRepresentation
bin101001010110110101…
…011000101110000100
311020121202200100200001
4221112311120232010
51211421031232140
632222225331044
73131302044061
oct512665305604
9136552610601
1044406508420
111791835303a
128733796a84
134258c83ab1
1422138dbc68
15124d7a8e9a
hexa56d58b84

44406508420 has 12 divisors (see below), whose sum is σ = 93253667724. Its totient is φ = 17762603360.

The previous prime is 44406508339. The next prime is 44406508423. The reversal of 44406508420 is 2480560444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32086840384 + 12319668036 = 179128^2 + 110994^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44406508420.

It is not an unprimeable number, because it can be changed into a prime (44406508423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110162691 + ... + 1110162730.

It is an arithmetic number, because the mean of its divisors is an integer number (7771138977).

Almost surely, 244406508420 is an apocalyptic number.

It is an amenable number.

44406508420 is an abundant number, since it is smaller than the sum of its proper divisors (48847159304).

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

44406508420 is a wasteful number, since it uses less digits than its factorization.

44406508420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220325430 (or 2220325428 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

It can be divided in two parts, 44406 and 508420, that added together give a triangular number (552826 = T1051).

The spelling of 44406508420 in words is "forty-four billion, four hundred six million, five hundred eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2220325421 4440650842 8881301684 11101627105 22203254210 44406508420