13240432 has 20 divisors (see below), whose sum is σ = 25853256. Its totient is φ = 6568640.

The previous prime is 13240421. The next prime is 13240453. The reversal of 13240432 is 23404231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063 + ... + 5254.

Almost surely, 2^13240432 is an apocalyptic number.

It is an amenable number.

13240432 is a deficient number, since it is larger than the sum of its proper divisors (12612824).

13240432 is a wasteful number, since it uses less digits than its factorization.

13240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456 (or 6450 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13240432 is about 3638.7404414165. The cubic root of 13240432 is about 236.5742026771.

Adding to 13240432 its reverse (23404231), we get a palindrome (36644663).

The spelling of 13240432 in words is "thirteen million, two hundred forty thousand, four hundred thirty-two".