312603940 has 48 divisors (see below), whose sum is σ = 717522624. Its totient is φ = 113456000.

The previous prime is 312603931. The next prime is 312603943. The reversal of 312603940 is 49306213.

312603940 = 2357² + 2358² + ... + 2411².

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 312603899 and 312603908.

It is not an unprimeable number, because it can be changed into a prime (312603943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 153207 + ... + 155233.

It is an arithmetic number, because the mean of its divisors is an integer number (14948388).

Almost surely, 2^312603940 is an apocalyptic number.

It is an amenable number.

312603940 is an abundant number, since it is smaller than the sum of its proper divisors (404918684).

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

312603940 is a wasteful number, since it uses less digits than its factorization.

312603940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748 (or 2746 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 312603940 is about 17680.6091524020. The cubic root of 312603940 is about 678.6796322267.

The spelling of 312603940 in words is "three hundred twelve million, six hundred three thousand, nine hundred forty".