731940868 has 12 divisors (see below), whose sum is σ = 1336587840. Its totient is φ = 350058632.

The previous prime is 731940863. The next prime is 731940871. The reversal of 731940868 is 868049137.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (731940863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3977848 + ... + 3978031.

It is an arithmetic number, because the mean of its divisors is an integer number (111382320).

Almost surely, 2^731940868 is an apocalyptic number.

It is an amenable number.

731940868 is a deficient number, since it is larger than the sum of its proper divisors (604646972).

731940868 is a wasteful number, since it uses less digits than its factorization.

731940868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955906 (or 7955904 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 731940868 is about 27054.4057040623. The cubic root of 731940868 is about 901.2086099760.

The spelling of 731940868 in words is "seven hundred thirty-one million, nine hundred forty thousand, eight hundred sixty-eight".