674986840 has 32 divisors (see below), whose sum is σ = 1656786960. Its totient is φ = 245449600.

The previous prime is 674986831. The next prime is 674986891. The reversal of 674986840 is 48689476.

It is a happy number.

It is a congruent number.

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, 766591 + ... + 767470.

Almost surely, 2^674986840 is an apocalyptic number.

It is an amenable number.

674986840 is an abundant number, since it is smaller than the sum of its proper divisors (981800120).

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

674986840 is a wasteful number, since it uses less digits than its factorization.

674986840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534083 (or 1534079 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 674986840 is about 25980.5088479806. The cubic root of 674986840 is about 877.1996206752.

The spelling of 674986840 in words is "six hundred seventy-four million, nine hundred eighty-six thousand, eight hundred forty".