312042440304 has 60 divisors (see below), whose sum is σ = 998040506736. Its totient is φ = 89154982656.

The previous prime is 312042440267. The next prime is 312042440341. The reversal of 312042440304 is 403044240213.

It is a happy number.

312042440304 is a `hidden beast` number, since 31 + 204 + 24 + 403 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (312042440267) and next prime (312042440341).

It is a super-2 number, since 2×312042440304² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154781949 + ... + 154783964.

Almost surely, 2^312042440304 is an apocalyptic number.

It is an amenable number.

312042440304 is an abundant number, since it is smaller than the sum of its proper divisors (685998066432).

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

312042440304 is a wasteful number, since it uses less digits than its factorization.

312042440304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309565934 (or 309565925 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 312042440304 its reverse (403044240213), we get a palindrome (715086680517).

The spelling of 312042440304 in words is "three hundred twelve billion, forty-two million, four hundred forty thousand, three hundred four".