40013520504 has 32 divisors (see below), whose sum is σ = 100097733120. Its totient is φ = 13329315936.

The previous prime is 40013520493. The next prime is 40013520511. The reversal of 40013520504 is 40502531004.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 494374 + ... + 569589.

It is an arithmetic number, because the mean of its divisors is an integer number (3128054160).

Almost surely, 2^40013520504 is an apocalyptic number.

It is an amenable number.

40013520504 is an abundant number, since it is smaller than the sum of its proper divisors (60084212616).

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

40013520504 is a wasteful number, since it uses less digits than its factorization.

40013520504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065539 (or 1065535 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 40013520504 in words is "forty billion, thirteen million, five hundred twenty thousand, five hundred four".