307666944 has 224 divisors, whose sum is σ = 990843840. Its totient is φ = 93782016.

The previous prime is 307666889. The next prime is 307666999. The reversal of 307666944 is 449666703.

It is an interprime number because it is at equal distance from previous prime (307666889) and next prime (307666999).

It is a self number, because there is not a number n which added to its sum of digits gives 307666944.

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, 2875339 + ... + 2875445.

It is an arithmetic number, because the mean of its divisors is an integer number (4423410).

Almost surely, 2^307666944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307666944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495421920).

307666944 is an abundant number, since it is smaller than the sum of its proper divisors (683176896).

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

307666944 is a wasteful number, since it uses less digits than its factorization.

307666944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The square root of 307666944 is about 17540.4373947744. The cubic root of 307666944 is about 675.0878305464.

The spelling of 307666944 in words is "three hundred seven million, six hundred sixty-six thousand, nine hundred forty-four".