13120432 has 20 divisors (see below), whose sum is σ = 27376720. Its totient is φ = 6055488.

The previous prime is 13120427. The next prime is 13120483. The reversal of 13120432 is 23402131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 31332 + ... + 31747.

It is an arithmetic number, because the mean of its divisors is an integer number (1368836).

Almost surely, 2^13120432 is an apocalyptic number.

It is an amenable number.

13120432 is an abundant number, since it is smaller than the sum of its proper divisors (14256288).

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

13120432 is a wasteful number, since it uses less digits than its factorization.

13120432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63100 (or 63094 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13120432 is about 3622.2136877882. The cubic root of 13120432 is about 235.8573302200.

Adding to 13120432 its reverse (23402131), we get a palindrome (36522563).

The spelling of 13120432 in words is "thirteen million, one hundred twenty thousand, four hundred thirty-two".