674491500 has 144 divisors (see below), whose sum is σ = 2185843296. Its totient is φ = 174960000.

The previous prime is 674491471. The next prime is 674491529. The reversal of 674491500 is 5194476.

674491500 is a `hidden beast` number, since 67 + 4 + 4 + 91 + 500 = 666.

674491500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (674491471) and next prime (674491529).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164475 + ... + 168525.

Almost surely, 2^674491500 is an apocalyptic number.

674491500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674491500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092921648).

674491500 is an abundant number, since it is smaller than the sum of its proper divisors (1511351796).

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

674491500 is a wasteful number, since it uses less digits than its factorization.

674491500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 674491500 is about 25970.9741827295. The cubic root of 674491500 is about 876.9849901240.

The spelling of 674491500 in words is "six hundred seventy-four million, four hundred ninety-one thousand, five hundred".