40684832724 has 24 divisors (see below), whose sum is σ = 96540282720. Its totient is φ = 13331752864.

The previous prime is 40684832719. The next prime is 40684832759. The reversal of 40684832724 is 42723848604.

It is a super-2 number, since 2×40684832724² (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 7 ways as a sum of consecutive naturals, for example, 28731519 + ... + 28732934.

It is an arithmetic number, because the mean of its divisors is an integer number (4022511780).

Almost surely, 2^40684832724 is an apocalyptic number.

It is an amenable number.

40684832724 is an abundant number, since it is smaller than the sum of its proper divisors (55855449996).

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

40684832724 is a wasteful number, since it uses less digits than its factorization.

40684832724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57464519 (or 57464517 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 40684832724 in words is "forty billion, six hundred eighty-four million, eight hundred thirty-two thousand, seven hundred twenty-four".