390716812 has 6 divisors (see below), whose sum is σ = 683754428. Its totient is φ = 195358404.

The previous prime is 390716761. The next prime is 390716849. The reversal of 390716812 is 218617093.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48839598 + ... + 48839605.

Almost surely, 2^390716812 is an apocalyptic number.

It is an amenable number.

390716812 is a deficient number, since it is larger than the sum of its proper divisors (293037616).

390716812 is a wasteful number, since it uses less digits than its factorization.

390716812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97679207 (or 97679205 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 390716812 is about 19766.5579198807. The cubic root of 390716812 is about 731.0617015157.

The spelling of 390716812 in words is "three hundred ninety million, seven hundred sixteen thousand, eight hundred twelve".