40013536 has 24 divisors (see below), whose sum is σ = 78952104. Its totient is φ = 19962240.

The previous prime is 40013507. The next prime is 40013551. The reversal of 40013536 is 63531004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16906 + ... + 19126.

It is an arithmetic number, because the mean of its divisors is an integer number (3289671).

Almost surely, 2^40013536 is an apocalyptic number.

It is an amenable number.

40013536 is a deficient number, since it is larger than the sum of its proper divisors (38938568).

40013536 is a wasteful number, since it uses less digits than its factorization.

40013536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794 (or 2786 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 40013536 is about 6325.6253445806. The cubic root of 40013536 is about 342.0337620420.

The spelling of 40013536 in words is "forty million, thirteen thousand, five hundred thirty-six".