674436 has 72 divisors (see below), whose sum is σ = 1940736. Its totient is φ = 181440.

The previous prime is 674431. The next prime is 674449. The reversal of 674436 is 634476.

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 674436.

It is not an unprimeable number, because it can be changed into a prime (674431) by changing a digit.

674436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18210 + ... + 18246.

2⁶⁷⁴⁴³⁶ 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 674436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970368).

674436 is an abundant number, since it is smaller than the sum of its proper divisors (1266300).

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

674436 is a wasteful number, since it uses less digits than its factorization.

674436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 80 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 674436 is about 821.2405250595. The cubic root of 674436 is about 87.6960935459.

The spelling of 674436 in words is "six hundred seventy-four thousand, four hundred thirty-six".