674668530 has 96 divisors (see below), whose sum is σ = 1891693440. Its totient is φ = 166268160.

The previous prime is 674668529. The next prime is 674668541. The reversal of 674668530 is 35866476.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65299 + ... + 74921.

It is an arithmetic number, because the mean of its divisors is an integer number (19705140).

Almost surely, 2^674668530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674668530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945846720).

674668530 is an abundant number, since it is smaller than the sum of its proper divisors (1217024910).

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

674668530 is a wasteful number, since it uses less digits than its factorization.

674668530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696 (or 9693 counting only the distinct ones).

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

The square root of 674668530 is about 25974.3821870704. The cubic root of 674668530 is about 877.0617091892.

The spelling of 674668530 in words is "six hundred seventy-four million, six hundred sixty-eight thousand, five hundred thirty".