674374506 has 64 divisors (see below), whose sum is σ = 1501159296. Its totient is φ = 200620800.

The previous prime is 674374499. The next prime is 674374517. The reversal of 674374506 is 605473476.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521721 + ... + 523011.

It is an arithmetic number, because the mean of its divisors is an integer number (23455614).

Almost surely, 2^674374506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674374506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750579648).

674374506 is an abundant number, since it is smaller than the sum of its proper divisors (826784790).

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

674374506 is a wasteful number, since it uses less digits than its factorization.

674374506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 674374506 is about 25968.7216859051. The cubic root of 674374506 is about 876.9342813482.

The spelling of 674374506 in words is "six hundred seventy-four million, three hundred seventy-four thousand, five hundred six".