674436880 has 80 divisors (see below), whose sum is σ = 1729983024. Its totient is φ = 242933760.

The previous prime is 674436871. The next prime is 674436883. The reversal of 674436880 is 88634476.

It can be written as a sum of positive squares in 8 ways, for example, as 68095504 + 606341376 = 8252^2 + 24624^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×674436880³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 674436880.

It is not an unprimeable number, because it can be changed into a prime (674436883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 34732 + ... + 50548.

Almost surely, 2^674436880 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 674436880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864991512).

674436880 is an abundant number, since it is smaller than the sum of its proper divisors (1055546144).

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

674436880 is a wasteful number, since it uses less digits than its factorization.

674436880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884 (or 15878 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 674436880 is about 25969.9226028881. The cubic root of 674436880 is about 876.9613168762.

The spelling of 674436880 in words is "six hundred seventy-four million, four hundred thirty-six thousand, eight hundred eighty".