1320432504 has 16 divisors (see below), whose sum is σ = 3301081320. Its totient is φ = 440144160.

The previous prime is 1320432497. The next prime is 1320432521. The reversal of 1320432504 is 4052340231.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 55018021 = 1320432504 / (1 + 3 + 2 + 0 + 4 + 3 + 2 + 5 + 0 + 4).

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, 27508987 + ... + 27509034.

Almost surely, 2^1320432504 is an apocalyptic number.

It is an amenable number.

1320432504 is an abundant number, since it is smaller than the sum of its proper divisors (1980648816).

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

1320432504 is a wasteful number, since it uses less digits than its factorization.

1320432504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55018030 (or 55018026 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1320432504 is about 36337.7559020917. The cubic root of 1320432504 is about 1097.0811055235.

Adding to 1320432504 its reverse (4052340231), we get a palindrome (5372772735).

The spelling of 1320432504 in words is "one billion, three hundred twenty million, four hundred thirty-two thousand, five hundred four".