674742920 has 32 divisors (see below), whose sum is σ = 1607477400. Its totient is φ = 254020608.

The previous prime is 674742917. The next prime is 674742949. The reversal of 674742920 is 29247476.

It can be written as a sum of positive squares in 4 ways, for example, as 447999556 + 226743364 = 21166^2 + 15058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495455 + ... + 496814.

Almost surely, 2^674742920 is an apocalyptic number.

It is an amenable number.

674742920 is an abundant number, since it is smaller than the sum of its proper divisors (932734480).

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

674742920 is a wasteful number, since it uses less digits than its factorization.

674742920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992297 (or 992293 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 674742920 is about 25975.8141354607. The cubic root of 674742920 is about 877.0939433999.

The spelling of 674742920 in words is "six hundred seventy-four million, seven hundred forty-two thousand, nine hundred twenty".