40404088400 has 60 divisors (see below), whose sum is σ = 104537822172. Its totient is φ = 14918430720.

The previous prime is 40404088397. The next prime is 40404088427. The reversal of 40404088400 is 488040404.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 223084096 + 40181004304 = 14936^2 + 200452^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3879809 + ... + 3890208.

Almost surely, 2^40404088400 is an apocalyptic number.

40404088400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40404088400 is an abundant number, since it is smaller than the sum of its proper divisors (64133733772).

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

40404088400 is a wasteful number, since it uses less digits than its factorization.

40404088400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770048 (or 7770037 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The spelling of 40404088400 in words is "forty billion, four hundred four million, eighty-eight thousand, four hundred".