13888356 has 12 divisors (see below), whose sum is σ = 32406192. Its totient is φ = 4629448.

The previous prime is 13888351. The next prime is 13888367. The reversal of 13888356 is 65388831.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13888351) 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, 578670 + ... + 578693.

It is an arithmetic number, because the mean of its divisors is an integer number (2700516).

Almost surely, 2^13888356 is an apocalyptic number.

It is an amenable number.

13888356 is an abundant number, since it is smaller than the sum of its proper divisors (18517836).

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

13888356 is a wasteful number, since it uses less digits than its factorization.

13888356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157370 (or 1157368 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 13888356 is about 3726.7084672671. The cubic root of 13888356 is about 240.3718541102.

The spelling of 13888356 in words is "thirteen million, eight hundred eighty-eight thousand, three hundred fifty-six".