674635590 has 48 divisors (see below), whose sum is σ = 1767473136. Its totient is φ = 178526400.

The previous prime is 674635513. The next prime is 674635649. The reversal of 674635590 is 95536476.

674635590 is a `hidden beast` number, since 6 + 7 + 4 + 635 + 5 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16821 + ... + 40400.

It is an arithmetic number, because the mean of its divisors is an integer number (36822357).

Almost surely, 2^674635590 is an apocalyptic number.

674635590 is an abundant number, since it is smaller than the sum of its proper divisors (1092837546).

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

674635590 is a wasteful number, since it uses less digits than its factorization.

674635590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57365 (or 57362 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 674635590 is about 25973.7480930265. The cubic root of 674635590 is about 877.0474350770.

The spelling of 674635590 in words is "six hundred seventy-four million, six hundred thirty-five thousand, five hundred ninety".