1304312 has 16 divisors (see below), whose sum is σ = 2574600. Its totient is φ = 617760.

The previous prime is 1304309. The next prime is 1304321. The reversal of 1304312 is 2134031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4139 + ... + 4442.

2^1304312 is an apocalyptic number.

It is an amenable number.

1304312 is a deficient number, since it is larger than the sum of its proper divisors (1270288).

1304312 is a wasteful number, since it uses less digits than its factorization.

1304312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8606 (or 8602 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1304312 is about 1142.0647967607. The cubic root of 1304312 is about 109.2598240096.

Adding to 1304312 its reverse (2134031), we get a palindrome (3438343).

The spelling of 1304312 in words is "one million, three hundred four thousand, three hundred twelve".