40400311232 has 56 divisors (see below), whose sum is σ = 84915024480. Its totient is φ = 19005235200.

The previous prime is 40400311229. The next prime is 40400311241. The reversal of 40400311232 is 23211300404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566269 + ... + 4575107.

Almost surely, 2^40400311232 is an apocalyptic number.

It is an amenable number.

40400311232 is an abundant number, since it is smaller than the sum of its proper divisors (44514713248).

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

40400311232 is a wasteful number, since it uses less digits than its factorization.

40400311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13069 (or 13059 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40400311232 its reverse (23211300404), we get a palindrome (63611611636).

The spelling of 40400311232 in words is "forty billion, four hundred million, three hundred eleven thousand, two hundred thirty-two".