312439130 has 32 divisors (see below), whose sum is σ = 590198400. Its totient is φ = 118858432.

The previous prime is 312439129. The next prime is 312439139. The reversal of 312439130 is 31934213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312439130.

It is not an unprimeable number, because it can be changed into a prime (312439139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37376 + ... + 44964.

It is an arithmetic number, because the mean of its divisors is an integer number (18443700).

Almost surely, 2^312439130 is an apocalyptic number.

312439130 is a deficient number, since it is larger than the sum of its proper divisors (277759270).

312439130 is a wasteful number, since it uses less digits than its factorization.

312439130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 312439130 is about 17675.9477822266. The cubic root of 312439130 is about 678.5603408609.

The spelling of 312439130 in words is "three hundred twelve million, four hundred thirty-nine thousand, one hundred thirty".