307644864 has 28 divisors (see below), whose sum is σ = 813977544. Its totient is φ = 102548224.

The previous prime is 307644859. The next prime is 307644893. The reversal of 307644864 is 468446703.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 800967 + ... + 801350.

Almost surely, 2^307644864 is an apocalyptic number.

It is an amenable number.

307644864 is an abundant number, since it is smaller than the sum of its proper divisors (506332680).

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

307644864 is a wasteful number, since it uses less digits than its factorization.

307644864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602332 (or 1602322 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 307644864 is about 17539.8079807049. The cubic root of 307644864 is about 675.0716807279.

The spelling of 307644864 in words is "three hundred seven million, six hundred forty-four thousand, eight hundred sixty-four".