312421304 has 16 divisors (see below), whose sum is σ = 630850920. Its totient is φ = 144194400.

The previous prime is 312421253. The next prime is 312421309. The reversal of 312421304 is 403124213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312421309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501922 + ... + 1502129.

Almost surely, 2^312421304 is an apocalyptic number.

It is an amenable number.

312421304 is an abundant number, since it is smaller than the sum of its proper divisors (318429616).

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

312421304 is a wasteful number, since it uses less digits than its factorization.

312421304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004070 (or 3004066 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312421304 is about 17675.4435305030. The cubic root of 312421304 is about 678.5474356841.

Adding to 312421304 its reverse (403124213), we get a palindrome (715545517).

The spelling of 312421304 in words is "three hundred twelve million, four hundred twenty-one thousand, three hundred four".