13992788 has 12 divisors (see below), whose sum is σ = 24625440. Its totient is φ = 6956952.

The previous prime is 13992787. The next prime is 13992791. The reversal of 13992788 is 88729931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13992787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9056 + ... + 10487.

It is an arithmetic number, because the mean of its divisors is an integer number (2052120).

Almost surely, 2^13992788 is an apocalyptic number.

It is an amenable number.

13992788 is a deficient number, since it is larger than the sum of its proper divisors (10632652).

13992788 is a wasteful number, since it uses less digits than its factorization.

13992788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19726 (or 19724 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 13992788 is about 3740.6935185872. The cubic root of 13992788 is about 240.9728337233.

The spelling of 13992788 in words is "thirteen million, nine hundred ninety-two thousand, seven hundred eighty-eight".