13951388 has 12 divisors (see below), whose sum is σ = 26634552. Its totient is φ = 6341520.

The previous prime is 13951381. The next prime is 13951397. The reversal of 13951388 is 88315931.

13951388 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 (13951381) 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, 158495 + ... + 158582.

It is an arithmetic number, because the mean of its divisors is an integer number (2219546).

Almost surely, 2^13951388 is an apocalyptic number.

It is an amenable number.

13951388 is a deficient number, since it is larger than the sum of its proper divisors (12683164).

13951388 is a wasteful number, since it uses less digits than its factorization.

13951388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317092 (or 317090 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 13951388 is about 3735.1556861796. The cubic root of 13951388 is about 240.7349461689.

The spelling of 13951388 in words is "thirteen million, nine hundred fifty-one thousand, three hundred eighty-eight".