13238456 has 32 divisors (see below), whose sum is σ = 30948480. Its totient is φ = 5157600.

The previous prime is 13238441. The next prime is 13238473. The reversal of 13238456 is 65483231.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10130 + ... + 11361.

It is an arithmetic number, because the mean of its divisors is an integer number (967140).

Almost surely, 2^13238456 is an apocalyptic number.

It is an amenable number.

13238456 is an abundant number, since it is smaller than the sum of its proper divisors (17710024).

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

13238456 is a wasteful number, since it uses less digits than its factorization.

13238456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21515 (or 21511 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 13238456 is about 3638.4689087582. The cubic root of 13238456 is about 236.5624333259.

It can be divided in two parts, 1323 and 8456, that added together give a palindrome (9779).

The spelling of 13238456 in words is "thirteen million, two hundred thirty-eight thousand, four hundred fifty-six".