306986768 has 20 divisors (see below), whose sum is σ = 648858768. Its totient is φ = 139539360.

The previous prime is 306986749. The next prime is 306986777. The reversal of 306986768 is 867689603.

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, 871946 + ... + 872297.

Almost surely, 2^306986768 is an apocalyptic number.

It is an amenable number.

306986768 is an abundant number, since it is smaller than the sum of its proper divisors (341872000).

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

306986768 is a wasteful number, since it uses less digits than its factorization.

306986768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744262 (or 1744256 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 306986768 is about 17521.0378688022. The cubic root of 306986768 is about 674.5899790629.

The spelling of 306986768 in words is "three hundred six million, nine hundred eighty-six thousand, seven hundred sixty-eight".