13242256 has 20 divisors (see below), whose sum is σ = 25792000. Its totient is φ = 6586272.

The previous prime is 13242253. The next prime is 13242277. The reversal of 13242256 is 65224231.

It is a self number, because there is not a number n which added to its sum of digits gives 13242256.

It is not an unprimeable number, because it can be changed into a prime (13242253) 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, 1105 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (1289600).

Almost surely, 2^13242256 is an apocalyptic number.

13242256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13242256 is the 2302-nd centered pentagonal number.

It is an amenable number.

13242256 is a deficient number, since it is larger than the sum of its proper divisors (12549744).

13242256 is a wasteful number, since it uses less digits than its factorization.

13242256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366 (or 4360 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 13242256 is about 3638.9910689640. The cubic root of 13242256 is about 236.5850656543.

Adding to 13242256 its reverse (65224231), we get a palindrome (78466487).

It can be divided in two parts, 1324225 and 6, that added together give a palindrome (1324231).

The spelling of 13242256 in words is "thirteen million, two hundred forty-two thousand, two hundred fifty-six".