312728234 has 16 divisors (see below), whose sum is σ = 577344768. Its totient is φ = 123716592.

The previous prime is 312728231. The next prime is 312728237. The reversal of 312728234 is 432827213.

It is an interprime number because it is at equal distance from previous prime (312728231) and next prime (312728237).

It is a self number, because there is not a number n which added to its sum of digits gives 312728234.

It is not an unprimeable number, because it can be changed into a prime (312728231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858962 + ... + 859325.

It is an arithmetic number, because the mean of its divisors is an integer number (36084048).

Almost surely, 2^312728234 is an apocalyptic number.

312728234 is a deficient number, since it is larger than the sum of its proper divisors (264616534).

312728234 is a wasteful number, since it uses less digits than its factorization.

312728234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718309.

The product of its digits is 16128, while the sum is 32.

The square root of 312728234 is about 17684.1237837785. The cubic root of 312728234 is about 678.7695699165.

The spelling of 312728234 in words is "three hundred twelve million, seven hundred twenty-eight thousand, two hundred thirty-four".