40053636 has 48 divisors (see below), whose sum is σ = 118679680. Its totient is φ = 11443680.

The previous prime is 40053623. The next prime is 40053659. The reversal of 40053636 is 63635004.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 25735 + ... + 27246.

Almost surely, 2^40053636 is an apocalyptic number.

It is an amenable number.

40053636 is an abundant number, since it is smaller than the sum of its proper divisors (78626044).

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

40053636 is a wasteful number, since it uses less digits than its factorization.

40053636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53001 (or 52993 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 40053636 is about 6328.7941979496. The cubic root of 40053636 is about 342.1479815125.

The spelling of 40053636 in words is "forty million, fifty-three thousand, six hundred thirty-six".