768657442 has 16 divisors (see below), whose sum is σ = 1335750912. Its totient is φ = 324911520.

The previous prime is 768657419. The next prime is 768657443. The reversal of 768657442 is 244756867.

It is not an unprimeable number, because it can be changed into a prime (768657443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375034 + ... + 377077.

It is an arithmetic number, because the mean of its divisors is an integer number (83484432).

Almost surely, 2^768657442 is an apocalyptic number.

768657442 is a deficient number, since it is larger than the sum of its proper divisors (567093470).

768657442 is a wasteful number, since it uses less digits than its factorization.

768657442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752193.

The product of its digits is 2257920, while the sum is 49.

The square root of 768657442 is about 27724.6720810184. The cubic root of 768657442 is about 916.0326331312.

The spelling of 768657442 in words is "seven hundred sixty-eight million, six hundred fifty-seven thousand, four hundred forty-two".