674261628 has 24 divisors (see below), whose sum is σ = 1574832000. Its totient is φ = 224531760.

The previous prime is 674261579. The next prime is 674261641. The reversal of 674261628 is 826162476.

It is a self number, because there is not a number n which added to its sum of digits gives 674261628.

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 7 ways as a sum of consecutive naturals, for example, 14878 + ... + 39621.

It is an arithmetic number, because the mean of its divisors is an integer number (65618000).

Almost surely, 2^674261628 is an apocalyptic number.

It is an amenable number.

674261628 is an abundant number, since it is smaller than the sum of its proper divisors (900570372).

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

674261628 is a wasteful number, since it uses less digits than its factorization.

674261628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55537 (or 55535 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 674261628 is about 25966.5482496230. The cubic root of 674261628 is about 876.8853510133.

The spelling of 674261628 in words is "six hundred seventy-four million, two hundred sixty-one thousand, six hundred twenty-eight".