44400840880 has 40 divisors (see below), whose sum is σ = 112616680464. Its totient is φ = 16145760000.

The previous prime is 44400840851. The next prime is 44400840901. The reversal of 44400840880 is 8804800444.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25226871 + ... + 25228630.

Almost surely, 2^44400840880 is an apocalyptic number.

44400840880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44400840880 is an abundant number, since it is smaller than the sum of its proper divisors (68215839584).

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

44400840880 is a wasteful number, since it uses less digits than its factorization.

44400840880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50455525 (or 50455519 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 44400840880 in words is "forty-four billion, four hundred million, eight hundred forty thousand, eight hundred eighty".