1304432 has 10 divisors (see below), whose sum is σ = 2527368. Its totient is φ = 652208.

The previous prime is 1304419. The next prime is 1304477. The reversal of 1304432 is 2344031.

It is a self number, because there is not a number n which added to its sum of digits gives 1304432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40748 + ... + 40779.

2^1304432 is an apocalyptic number.

It is an amenable number.

1304432 is a deficient number, since it is larger than the sum of its proper divisors (1222936).

1304432 is an equidigital number, since it uses as much as digits as its factorization.

1304432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81535 (or 81529 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1304432 is about 1142.1173319760. The cubic root of 1304432 is about 109.2631746335.

Adding to 1304432 its reverse (2344031), we get a palindrome (3648463).

The spelling of 1304432 in words is "one million, three hundred four thousand, four hundred thirty-two".