674542164 has 24 divisors (see below), whose sum is σ = 1575800800. Its totient is φ = 224580384.

The previous prime is 674542163. The next prime is 674542181. The reversal of 674542164 is 461245476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674542163) 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, 22714 + ... + 43185.

Almost surely, 2^674542164 is an apocalyptic number.

It is an amenable number.

674542164 is an abundant number, since it is smaller than the sum of its proper divisors (901258636).

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

674542164 is a wasteful number, since it uses less digits than its factorization.

674542164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66759 (or 66757 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 674542164 is about 25971.9495610168. The cubic root of 674542164 is about 877.0069476308.

The spelling of 674542164 in words is "six hundred seventy-four million, five hundred forty-two thousand, one hundred sixty-four".