674130528 has 144 divisors (see below), whose sum is σ = 2018199456. Its totient is φ = 213166080.

The previous prime is 674130493. The next prime is 674130533. The reversal of 674130528 is 825031476.

674130528 is a `hidden beast` number, since 67 + 41 + 30 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 674130492 and 674130501.

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, 436125 + ... + 437667.

It is an arithmetic number, because the mean of its divisors is an integer number (14015274).

Almost surely, 2^674130528 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 674130528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009099728).

674130528 is an abundant number, since it is smaller than the sum of its proper divisors (1344068928).

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

674130528 is a wasteful number, since it uses less digits than its factorization.

674130528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 674130528 is about 25964.0237251471. The cubic root of 674130528 is about 876.8285149543.

The spelling of 674130528 in words is "six hundred seventy-four million, one hundred thirty thousand, five hundred twenty-eight".