674577520 has 80 divisors (see below), whose sum is σ = 1671143040. Its totient is φ = 252502272.

The previous prime is 674577509. The next prime is 674577559. The reversal of 674577520 is 25775476.

674577520 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 123487 + ... + 128833.

It is an arithmetic number, because the mean of its divisors is an integer number (20889288).

Almost surely, 2^674577520 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 674577520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835571520).

674577520 is an abundant number, since it is smaller than the sum of its proper divisors (996565520).

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

674577520 is a wasteful number, since it uses less digits than its factorization.

674577520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462 (or 5456 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 43.

The square root of 674577520 is about 25972.6302095109. The cubic root of 674577520 is about 877.0222700809.

The spelling of 674577520 in words is "six hundred seventy-four million, five hundred seventy-seven thousand, five hundred twenty".