674840320 has 288 divisors, whose sum is σ = 2076834816. Its totient is φ = 203980800.

The previous prime is 674840317. The next prime is 674840351. The reversal of 674840320 is 23048476.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4040877 + ... + 4041043.

It is an arithmetic number, because the mean of its divisors is an integer number (7211232).

Almost surely, 2^674840320 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 674840320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038417408).

674840320 is an abundant number, since it is smaller than the sum of its proper divisors (1401994496).

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

674840320 is a wasteful number, since it uses less digits than its factorization.

674840320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 674840320 is about 25977.6888887368. The cubic root of 674840320 is about 877.1361445787.

Adding to 674840320 its reverse (23048476), we get a palindrome (697888796).

The spelling of 674840320 in words is "six hundred seventy-four million, eight hundred forty thousand, three hundred twenty".