312729834 has 8 divisors (see below), whose sum is σ = 625459680. Its totient is φ = 104243276.

The previous prime is 312729821. The next prime is 312729853. The reversal of 312729834 is 438927213.

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

312729834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 312729792 and 312729801.

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, 26060814 + ... + 26060825.

It is an arithmetic number, because the mean of its divisors is an integer number (78182460).

Almost surely, 2^312729834 is an apocalyptic number.

312729834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

312729834 is a wasteful number, since it uses less digits than its factorization.

312729834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52121644.

The product of its digits is 72576, while the sum is 39.

The square root of 312729834 is about 17684.1690220378. The cubic root of 312729834 is about 678.7707275024.

The spelling of 312729834 in words is "three hundred twelve million, seven hundred twenty-nine thousand, eight hundred thirty-four".