306474057 has 32 divisors (see below), whose sum is σ = 485372160. Its totient is φ = 190650240.

The previous prime is 306474043. The next prime is 306474073. The reversal of 306474057 is 750474603.

306474057 is a `hidden beast` number, since 3 + 0 + 647 + 4 + 0 + 5 + 7 = 666.

It is not a de Polignac number, because 306474057 - 2⁴ = 306474041 is a prime.

It is a super-2 number, since 2×306474057² = 187852695228078498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (306474257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19443 + ... + 31479.

It is an arithmetic number, because the mean of its divisors is an integer number (15167880).

Almost surely, 2^306474057 is an apocalyptic number.

It is an amenable number.

306474057 is a deficient number, since it is larger than the sum of its proper divisors (178898103).

306474057 is a wasteful number, since it uses less digits than its factorization.

306474057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12110 (or 12104 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 306474057 is about 17506.4004581182. The cubic root of 306474057 is about 674.2142164699.

The spelling of 306474057 in words is "three hundred six million, four hundred seventy-four thousand, fifty-seven".