40023636416 has 28 divisors (see below), whose sum is σ = 80509884192. Its totient is φ = 19737681408.

The previous prime is 40023636383. The next prime is 40023636431. The reversal of 40023636416 is 61463632004.

It is a super-2 number, since 2×40023636416² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4278680 + ... + 4288023.

Almost surely, 2^40023636416 is an apocalyptic number.

It is an amenable number.

40023636416 is an abundant number, since it is smaller than the sum of its proper divisors (40486247776).

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

40023636416 is an equidigital number, since it uses as much as digits as its factorization.

40023636416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8566788 (or 8566778 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 40023636416 in words is "forty billion, twenty-three million, six hundred thirty-six thousand, four hundred sixteen".