307668732 has 24 divisors (see below), whose sum is σ = 820450176. Its totient is φ = 87905328.

The previous prime is 307668731. The next prime is 307668733. The reversal of 307668732 is 237866703.

307668732 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (307668731) and next prime (307668733).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307668731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831278 + ... + 1831445.

It is an arithmetic number, because the mean of its divisors is an integer number (34185424).

Almost surely, 2^307668732 is an apocalyptic number.

It is an amenable number.

307668732 is an abundant number, since it is smaller than the sum of its proper divisors (512781444).

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

307668732 is a wasteful number, since it uses less digits than its factorization.

307668732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662737 (or 3662735 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 307668732 is about 17540.4883626426. The cubic root of 307668732 is about 675.0891382968.

The spelling of 307668732 in words is "three hundred seven million, six hundred sixty-eight thousand, seven hundred thirty-two".