13930388 has 12 divisors (see below), whose sum is σ = 24672480. Its totient is φ = 6881112.

The previous prime is 13930381. The next prime is 13930391. The reversal of 13930388 is 88303931.

13930388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13930381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20648 + ... + 21311.

It is an arithmetic number, because the mean of its divisors is an integer number (2056040).

Almost surely, 2^13930388 is an apocalyptic number.

It is an amenable number.

13930388 is a deficient number, since it is larger than the sum of its proper divisors (10742092).

13930388 is a wasteful number, since it uses less digits than its factorization.

13930388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42046 (or 42044 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 13930388 is about 3732.3434997331. The cubic root of 13930388 is about 240.6140986347.

The spelling of 13930388 in words is "thirteen million, nine hundred thirty thousand, three hundred eighty-eight".