306344664 has 48 divisors (see below), whose sum is σ = 845348400. Its totient is φ = 100186944.

The previous prime is 306344663. The next prime is 306344669. The reversal of 306344664 is 466443603.

306344664 is a `hidden beast` number, since 306 + 344 + 6 + 6 + 4 = 666.

It is a super-2 number, since 2×306344664² = 187694106322545792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306344663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36324 + ... + 43955.

It is an arithmetic number, because the mean of its divisors is an integer number (17611425).

Almost surely, 2^306344664 is an apocalyptic number.

It is an amenable number.

306344664 is an abundant number, since it is smaller than the sum of its proper divisors (539003736).

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

306344664 is a wasteful number, since it uses less digits than its factorization.

306344664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80344 (or 80337 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 306344664 is about 17502.7044767373. The cubic root of 306344664 is about 674.1193189537.

The spelling of 306344664 in words is "three hundred six million, three hundred forty-four thousand, six hundred sixty-four".