674542768 has 10 divisors (see below), whose sum is σ = 1306926644. Its totient is φ = 337271376.

The previous prime is 674542721. The next prime is 674542787. The reversal of 674542768 is 867245476.

It is a super-2 number, since 2×674542768² = 910015891722203648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21079446 + ... + 21079477.

Almost surely, 2^674542768 is an apocalyptic number.

It is an amenable number.

674542768 is a deficient number, since it is larger than the sum of its proper divisors (632383876).

674542768 is a wasteful number, since it uses less digits than its factorization.

674542768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42158931 (or 42158925 counting only the distinct ones).

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

The square root of 674542768 is about 25971.9611889437. The cubic root of 674542768 is about 877.0072093945.

The spelling of 674542768 in words is "six hundred seventy-four million, five hundred forty-two thousand, seven hundred sixty-eight".