674968320 has 216 divisors, whose sum is σ = 2515518096. Its totient is φ = 166109184.

The previous prime is 674968313. The next prime is 674968321. The reversal of 674968320 is 23869476.

674968320 is a `hidden beast` number, since 67 + 496 + 83 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (674968321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147507 + ... + 152013.

Almost surely, 2^674968320 is an apocalyptic number.

674968320 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 674968320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257759048).

674968320 is an abundant number, since it is smaller than the sum of its proper divisors (1840549776).

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

674968320 is a wasteful number, since it uses less digits than its factorization.

674968320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 674968320 is about 25980.1524244951. The cubic root of 674968320 is about 877.1915978592.

The spelling of 674968320 in words is "six hundred seventy-four million, nine hundred sixty-eight thousand, three hundred twenty".