768243938 has 32 divisors (see below), whose sum is σ = 1438639488. Its totient is φ = 298915200.

The previous prime is 768243911. The next prime is 768243979. The reversal of 768243938 is 839342867.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129068 + ... + 134888.

It is an arithmetic number, because the mean of its divisors is an integer number (44957484).

Almost surely, 2^768243938 is an apocalyptic number.

768243938 is a deficient number, since it is larger than the sum of its proper divisors (670395550).

768243938 is a wasteful number, since it uses less digits than its factorization.

768243938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698.

The product of its digits is 1741824, while the sum is 50.

The square root of 768243938 is about 27717.2137488601. The cubic root of 768243938 is about 915.8683418702.

The spelling of 768243938 in words is "seven hundred sixty-eight million, two hundred forty-three thousand, nine hundred thirty-eight".