44000400080 has 80 divisors (see below), whose sum is σ = 125908857984. Its totient is φ = 13925399040.

The previous prime is 44000400043. The next prime is 44000400097. The reversal of 44000400080 is 8000400044.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3014726 + ... + 3029285.

Almost surely, 2^44000400080 is an apocalyptic number.

44000400080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44000400080 is an abundant number, since it is smaller than the sum of its proper divisors (81908457904).

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

44000400080 is a wasteful number, since it uses less digits than its factorization.

44000400080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044044 (or 6044038 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The spelling of 44000400080 in words is "forty-four billion, four hundred thousand, eighty".