40404036992 has 64 divisors (see below), whose sum is σ = 90642585600. Its totient is φ = 17773017600.

The previous prime is 40404036973. The next prime is 40404037019. The reversal of 40404036992 is 29963040404.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 419192 + ... + 506487.

It is an arithmetic number, because the mean of its divisors is an integer number (1416290400).

Almost surely, 2^40404036992 is an apocalyptic number.

It is an amenable number.

40404036992 is an abundant number, since it is smaller than the sum of its proper divisors (50238548608).

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

40404036992 is a wasteful number, since it uses less digits than its factorization.

40404036992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925735 (or 925723 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 40404036992 in words is "forty billion, four hundred four million, thirty-six thousand, nine hundred ninety-two".