674636508 has 324 divisors, whose sum is σ = 2247755328. Its totient is φ = 169827840.

The previous prime is 674636489. The next prime is 674636561. The reversal of 674636508 is 805636476.

674636508 is a `hidden beast` number, since 6 + 7 + 4 + 636 + 5 + 0 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 9241560 + ... + 9241632.

Almost surely, 2^674636508 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 674636508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123877664).

674636508 is an abundant number, since it is smaller than the sum of its proper divisors (1573118820).

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

674636508 is a wasteful number, since it uses less digits than its factorization.

674636508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 674636508 is about 25973.7657647096. The cubic root of 674636508 is about 877.0478328864.

The spelling of 674636508 in words is "six hundred seventy-four million, six hundred thirty-six thousand, five hundred eight".