674481536 has 64 divisors (see below), whose sum is σ = 1403622000. Its totient is φ = 322430976.

The previous prime is 674481523. The next prime is 674481557. The reversal of 674481536 is 635184476.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403775 + ... + 405441.

Almost surely, 2^674481536 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 674481536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701811000).

674481536 is an abundant number, since it is smaller than the sum of its proper divisors (729140464).

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

674481536 is a wasteful number, since it uses less digits than its factorization.

674481536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1807 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 674481536 is about 25970.7823524822. The cubic root of 674481536 is about 876.9806716503.

The spelling of 674481536 in words is "six hundred seventy-four million, four hundred eighty-one thousand, five hundred thirty-six".