13888788 has 24 divisors (see below), whose sum is σ = 32483808. Its totient is φ = 4618656.

The previous prime is 13888769. The next prime is 13888793. The reversal of 13888788 is 88788831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13888788.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5170 + ... + 7382.

It is an arithmetic number, because the mean of its divisors is an integer number (1353492).

Almost surely, 2^13888788 is an apocalyptic number.

It is an amenable number.

13888788 is an abundant number, since it is smaller than the sum of its proper divisors (18595020).

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

13888788 is a wasteful number, since it uses less digits than its factorization.

13888788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2741 counting only the distinct ones).

The product of its digits is 688128, while the sum is 51.

The square root of 13888788 is about 3726.7664268102. The cubic root of 13888788 is about 240.3743463553.

The spelling of 13888788 in words is "thirteen million, eight hundred eighty-eight thousand, seven hundred eighty-eight".