674285320 has 64 divisors (see below), whose sum is σ = 1546646400. Its totient is φ = 264506880.

The previous prime is 674285317. The next prime is 674285321. The reversal of 674285320 is 23582476.

It is a self number, because there is not a number n which added to its sum of digits gives 674285320.

It is not an unprimeable number, because it can be changed into a prime (674285321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833076 + ... + 833884.

It is an arithmetic number, because the mean of its divisors is an integer number (24166350).

Almost surely, 2^674285320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674285320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773323200).

674285320 is an abundant number, since it is smaller than the sum of its proper divisors (872361080).

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

674285320 is a wasteful number, since it uses less digits than its factorization.

674285320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 674285320 is about 25967.0044479528. The cubic root of 674285320 is about 876.8956214700.

The spelling of 674285320 in words is "six hundred seventy-four million, two hundred eighty-five thousand, three hundred twenty".