13289988 has 24 divisors (see below), whose sum is σ = 32834592. Its totient is φ = 4169344.

The previous prime is 13289977. The next prime is 13289989. The reversal of 13289988 is 88998231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13289989) 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, 32370 + ... + 32777.

It is an arithmetic number, because the mean of its divisors is an integer number (1368108).

Almost surely, 2^13289988 is an apocalyptic number.

It is an amenable number.

13289988 is an abundant number, since it is smaller than the sum of its proper divisors (19544604).

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

13289988 is a wasteful number, since it uses less digits than its factorization.

13289988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65171 (or 65169 counting only the distinct ones).

The product of its digits is 248832, while the sum is 48.

The square root of 13289988 is about 3645.5435808669. The cubic root of 13289988 is about 236.8689834707.

The spelling of 13289988 in words is "thirteen million, two hundred eighty-nine thousand, nine hundred eighty-eight".