312439834 has 8 divisors (see below), whose sum is σ = 535611168. Its totient is φ = 133902780.

The previous prime is 312439817. The next prime is 312439873. The reversal of 312439834 is 438934213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 312439793 and 312439802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11158552 + ... + 11158579.

It is an arithmetic number, because the mean of its divisors is an integer number (66951396).

Almost surely, 2^312439834 is an apocalyptic number.

312439834 is a deficient number, since it is larger than the sum of its proper divisors (223171334).

312439834 is a wasteful number, since it uses less digits than its factorization.

312439834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22317140.

The product of its digits is 62208, while the sum is 37.

The square root of 312439834 is about 17675.9676962819. The cubic root of 312439834 is about 678.5608505134.

The spelling of 312439834 in words is "three hundred twelve million, four hundred thirty-nine thousand, eight hundred thirty-four".