13013868 has 24 divisors (see below), whose sum is σ = 34703872. Its totient is φ = 3718224.

The previous prime is 13013867. The next prime is 13013873. The reversal of 13013868 is 86831031.

13013868 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13013863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77380 + ... + 77547.

Almost surely, 2^13013868 is an apocalyptic number.

It is an amenable number.

13013868 is an abundant number, since it is smaller than the sum of its proper divisors (21690004).

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

13013868 is a wasteful number, since it uses less digits than its factorization.

13013868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154941 (or 154939 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 13013868 is about 3607.4739084296. The cubic root of 13013868 is about 235.2170501083.

Adding to 13013868 its reverse (86831031), we get a palindrome (99844899).

The spelling of 13013868 in words is "thirteen million, thirteen thousand, eight hundred sixty-eight".