674642268 has 18 divisors (see below), whose sum is σ = 1705345824. Its totient is φ = 224880744.

The previous prime is 674642257. The next prime is 674642273. The reversal of 674642268 is 862246476.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9369996 + ... + 9370067.

Almost surely, 2^674642268 is an apocalyptic number.

It is an amenable number.

674642268 is an abundant number, since it is smaller than the sum of its proper divisors (1030703556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674642268 is a wasteful number, since it uses less digits than its factorization.

674642268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18740073 (or 18740068 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 674642268 is about 25973.8766455837. The cubic root of 674642268 is about 877.0503289373.

The spelling of 674642268 in words is "six hundred seventy-four million, six hundred forty-two thousand, two hundred sixty-eight".