13089888 has 144 divisors (see below), whose sum is σ = 43819776. Its totient is φ = 3628800.

The previous prime is 13089863. The next prime is 13089889. The reversal of 13089888 is 88898031.

13089888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13089889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86613 + ... + 86763.

It is an arithmetic number, because the mean of its divisors is an integer number (304304).

Almost surely, 2^13089888 is an apocalyptic number.

13089888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13089888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21909888).

13089888 is an abundant number, since it is smaller than the sum of its proper divisors (30729888).

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

13089888 is a wasteful number, since it uses less digits than its factorization.

13089888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 13089888 is about 3617.9950248722. The cubic root of 13089888 is about 235.6741649149.

The spelling of 13089888 in words is "thirteen million, eighty-nine thousand, eight hundred eighty-eight".