306688732 has 12 divisors (see below), whose sum is σ = 613377520. Its totient is φ = 131438016.

The previous prime is 306688727. The next prime is 306688741. The reversal of 306688732 is 237886603.

306688732 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 5476557 + ... + 5476612.

Almost surely, 2^306688732 is an apocalyptic number.

It is an amenable number.

306688732 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.

306688732 is a wasteful number, since it uses less digits than its factorization.

306688732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953180 (or 10953178 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 306688732 is about 17512.5307137489. The cubic root of 306688732 is about 674.3716013581.

The spelling of 306688732 in words is "three hundred six million, six hundred eighty-eight thousand, seven hundred thirty-two".