674730 has 120 divisors (see below), whose sum is σ = 2234628. Its totient is φ = 145152.

The previous prime is 674719. The next prime is 674731. The reversal of 674730 is 37476.

674730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 670761 + 3969 = 819^2 + 63^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 674694 and 674703.

It is not an unprimeable number, because it can be changed into a prime (674731) by changing a digit.

674730 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 59 ways as a sum of consecutive naturals, for example, 39682 + ... + 39698.

2⁶⁷⁴⁷³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1117314).

674730 is an abundant number, since it is smaller than the sum of its proper divisors (1559898).

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

674730 is a wasteful number, since it uses less digits than its factorization.

674730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 674730 is about 821.4195030555. The cubic root of 674730 is about 87.7088345156.

The spelling of 674730 in words is "six hundred seventy-four thousand, seven hundred thirty".