393434712 has 64 divisors (see below), whose sum is σ = 1192233600. Its totient is φ = 119221920.

The previous prime is 393434707. The next prime is 393434779. The reversal of 393434712 is 217434393.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80418 + ... + 85169.

It is an arithmetic number, because the mean of its divisors is an integer number (18628650).

Almost surely, 2^393434712 is an apocalyptic number.

It is an amenable number.

393434712 is an abundant number, since it is smaller than the sum of its proper divisors (798798888).

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

393434712 is a wasteful number, since it uses less digits than its factorization.

393434712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165613 (or 165603 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 393434712 is about 19835.1887311414. The cubic root of 393434712 is about 732.7529205387.

The spelling of 393434712 in words is "three hundred ninety-three million, four hundred thirty-four thousand, seven hundred twelve".