674220 has 48 divisors (see below), whose sum is σ = 2001888. Its totient is φ = 168960.

The previous prime is 674189. The next prime is 674227. The reversal of 674220 is 22476.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (674227) by changing a digit.

674220 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 15 ways as a sum of consecutive naturals, for example, 690 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (41706).

2⁶⁷⁴²²⁰ is an apocalyptic number.

674220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000944).

674220 is an abundant number, since it is smaller than the sum of its proper divisors (1327668).

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

674220 is a wasteful number, since it uses less digits than its factorization.

674220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 674220 is about 821.1090061618. The cubic root of 674220 is about 87.6867304737.

Adding to 674220 its reverse (22476), we get a palindrome (696696).

The spelling of 674220 in words is "six hundred seventy-four thousand, two hundred twenty".