13900788 has 48 divisors (see below), whose sum is σ = 39318720. Its totient is φ = 4212000.

The previous prime is 13900771. The next prime is 13900793. The reversal of 13900788 is 88700931.

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

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 15 ways as a sum of consecutive naturals, for example, 4663 + ... + 7038.

It is an arithmetic number, because the mean of its divisors is an integer number (819140).

Almost surely, 2^13900788 is an apocalyptic number.

13900788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13900788 is an abundant number, since it is smaller than the sum of its proper divisors (25417932).

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

13900788 is a wasteful number, since it uses less digits than its factorization.

13900788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11725 (or 11717 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13900788 is about 3728.3760539946. The cubic root of 13900788 is about 240.4435547416.

The spelling of 13900788 in words is "thirteen million, nine hundred thousand, seven hundred eighty-eight".