807644368 has 20 divisors (see below), whose sum is σ = 1575317700. Its totient is φ = 401110784.

The previous prime is 807644359. The next prime is 807644371. The reversal of 807644368 is 863446708.

It can be written as a sum of positive squares in 2 ways, for example, as 29680704 + 777963664 = 5448^2 + 27892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167005 + ... + 171772.

It is an arithmetic number, because the mean of its divisors is an integer number (78765885).

Almost surely, 2^807644368 is an apocalyptic number.

It is an amenable number.

807644368 is a deficient number, since it is larger than the sum of its proper divisors (767673332).

807644368 is a wasteful number, since it uses less digits than its factorization.

807644368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338934 (or 338928 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 807644368 is about 28419.0845735748. The cubic root of 807644368 is about 931.2652328604.

The spelling of 807644368 in words is "eight hundred seven million, six hundred forty-four thousand, three hundred sixty-eight".