13788888 has 32 divisors (see below), whose sum is σ = 34637760. Its totient is φ = 4574240.

The previous prime is 13788881. The next prime is 13788911. The reversal of 13788888 is 88888731.

It is a happy number.

13788888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 13788888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13788881) 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, 4183 + ... + 6713.

It is an arithmetic number, because the mean of its divisors is an integer number (1082430).

Almost surely, 2^13788888 is an apocalyptic number.

It is an amenable number.

13788888 is an abundant number, since it is smaller than the sum of its proper divisors (20848872).

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

13788888 is a wasteful number, since it uses less digits than its factorization.

13788888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2763 counting only the distinct ones).

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

The square root of 13788888 is about 3713.3391980803. The cubic root of 13788888 is about 239.7966332791.

The spelling of 13788888 in words is "thirteen million, seven hundred eighty-eight thousand, eight hundred eighty-eight".