13242724 has 18 divisors (see below), whose sum is σ = 25474022. Its totient is φ = 6019200.

The previous prime is 13242701. The next prime is 13242769. The reversal of 13242724 is 42724231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11778624 + 1464100 = 3432^2 + 1210^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13197 + ... + 14164.

Almost surely, 2^13242724 is an apocalyptic number.

It is an amenable number.

13242724 is a deficient number, since it is larger than the sum of its proper divisors (12231298).

13242724 is a wasteful number, since it uses less digits than its factorization.

13242724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27387 (or 27374 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 13242724 is about 3639.0553719338. The cubic root of 13242724 is about 236.5878527047.

Adding to 13242724 its reverse (42724231), we get a palindrome (55966955).

The spelling of 13242724 in words is "thirteen million, two hundred forty-two thousand, seven hundred twenty-four".