307868356 has 6 divisors (see below), whose sum is σ = 538769630. Its totient is φ = 153934176.

The previous prime is 307868311. The next prime is 307868359. The reversal of 307868356 is 653868703.

It can be written as a sum of positive squares in only one way, i.e., 154504900 + 153363456 = 12430^2 + 12384^2 .

It is a super-2 number, since 2×307868356² = 189565849252285472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (307868359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38483541 + ... + 38483548.

Almost surely, 2^307868356 is an apocalyptic number.

It is an amenable number.

307868356 is a deficient number, since it is larger than the sum of its proper divisors (230901274).

307868356 is a wasteful number, since it uses less digits than its factorization.

307868356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76967093 (or 76967091 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 307868356 is about 17546.1778174051. The cubic root of 307868356 is about 675.2351122447.

The spelling of 307868356 in words is "three hundred seven million, eight hundred sixty-eight thousand, three hundred fifty-six".