13232988 has 36 divisors (see below), whose sum is σ = 33688200. Its totient is φ = 4379616.

The previous prime is 13232983. The next prime is 13233007. The reversal of 13232988 is 88923231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13232988² = 350223942816288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4131 + ... + 6597.

Almost surely, 2^13232988 is an apocalyptic number.

13232988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13232988 is an abundant number, since it is smaller than the sum of its proper divisors (20455212).

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

13232988 is a wasteful number, since it uses less digits than its factorization.

13232988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626 (or 2621 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 13232988 is about 3637.7174161828. The cubic root of 13232988 is about 236.5298589956.

The spelling of 13232988 in words is "thirteen million, two hundred thirty-two thousand, nine hundred eighty-eight".