40404003363920 has 80 divisors (see below), whose sum is σ = 107377535219328. Its totient is φ = 13850436472320.

The previous prime is 40404003363853. The next prime is 40404003363923. The reversal of 40404003363920 is 2936330040404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404003363923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2872934 + ... + 9437253.

Almost surely, 2^{40404003363920} is an apocalyptic number.

40404003363920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40404003363920 is an abundant number, since it is smaller than the sum of its proper divisors (66973531855408).

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

40404003363920 is a wasteful number, since it uses less digits than its factorization.

40404003363920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12316068 (or 12316062 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 40404003363920 in words is "forty trillion, four hundred four billion, three million, three hundred sixty-three thousand, nine hundred twenty".