13629988 has 24 divisors (see below), whose sum is σ = 25395552. Its totient is φ = 6378624.

The previous prime is 13629929. The next prime is 13629989. The reversal of 13629988 is 88992631.

It is not an unprimeable number, because it can be changed into a prime (13629989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14995 + ... + 15877.

It is an arithmetic number, because the mean of its divisors is an integer number (1058148).

Almost surely, 2^13629988 is an apocalyptic number.

It is an amenable number.

13629988 is a deficient number, since it is larger than the sum of its proper divisors (11765564).

13629988 is a wasteful number, since it uses less digits than its factorization.

13629988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1129 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 13629988 is about 3691.8813632077. The cubic root of 13629988 is about 238.8719516225.

The spelling of 13629988 in words is "thirteen million, six hundred twenty-nine thousand, nine hundred eighty-eight".