674560 has 72 divisors (see below), whose sum is σ = 1766016. Its totient is φ = 245760.

The previous prime is 674551. The next prime is 674563. The reversal of 674560 is 65476.

It is not an unprimeable number, because it can be changed into a prime (674563) by changing a digit.

674560 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21745 + ... + 21775.

It is an arithmetic number, because the mean of its divisors is an integer number (24528).

2⁶⁷⁴⁵⁶⁰ 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 674560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (883008).

674560 is an abundant number, since it is smaller than the sum of its proper divisors (1091456).

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

674560 is a wasteful number, since it uses less digits than its factorization.

674560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 674560 is about 821.3160171335. The cubic root of 674560 is about 87.7014677396.

The spelling of 674560 in words is "six hundred seventy-four thousand, five hundred sixty".