13638632 has 32 divisors (see below), whose sum is σ = 30499200. Its totient is φ = 5590464.

The previous prime is 13638629. The next prime is 13638659. The reversal of 13638632 is 23683631.

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 7 ways as a sum of consecutive naturals, for example, 4007 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (953100).

Almost surely, 2^13638632 is an apocalyptic number.

It is an amenable number.

13638632 is an abundant number, since it is smaller than the sum of its proper divisors (16860568).

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

13638632 is a wasteful number, since it uses less digits than its factorization.

13638632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625 (or 10621 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 13638632 is about 3693.0518544965. The cubic root of 13638632 is about 238.9224376736.

The spelling of 13638632 in words is "thirteen million, six hundred thirty-eight thousand, six hundred thirty-two".