44464051920 has 160 divisors (see below), whose sum is σ = 139016816640. Its totient is φ = 11756044800.

The previous prime is 44464051913. The next prime is 44464051937. The reversal of 44464051920 is 2915046444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28520101 + ... + 28521659.

It is an arithmetic number, because the mean of its divisors is an integer number (868855104).

Almost surely, 2^44464051920 is an apocalyptic number.

44464051920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44464051920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69508408320).

44464051920 is an abundant number, since it is smaller than the sum of its proper divisors (94552764720).

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

44464051920 is a wasteful number, since it uses less digits than its factorization.

44464051920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 44464051920 in words is "forty-four billion, four hundred sixty-four million, fifty-one thousand, nine hundred twenty".