393312934 has 32 divisors (see below), whose sum is σ = 697614336. Its totient is φ = 162747360.

The previous prime is 393312919. The next prime is 393312971. The reversal of 393312934 is 439213393.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 393312893 and 393312902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262692 + ... + 264184.

It is an arithmetic number, because the mean of its divisors is an integer number (21800448).

Almost surely, 2^393312934 is an apocalyptic number.

393312934 is a deficient number, since it is larger than the sum of its proper divisors (304301402).

393312934 is a wasteful number, since it uses less digits than its factorization.

393312934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140.

The product of its digits is 52488, while the sum is 37.

The square root of 393312934 is about 19832.1187471233. The cubic root of 393312934 is about 732.6773108796.

The spelling of 393312934 in words is "three hundred ninety-three million, three hundred twelve thousand, nine hundred thirty-four".