674633568 has 144 divisors (see below), whose sum is σ = 2074448880. Its totient is φ = 191407104.

The previous prime is 674633567. The next prime is 674633569. The reversal of 674633568 is 865336476.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (674633567) and next prime (674633569).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674633567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 813378 + ... + 814206.

It is an arithmetic number, because the mean of its divisors is an integer number (14405895).

Almost surely, 2^674633568 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 674633568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037224440).

674633568 is an abundant number, since it is smaller than the sum of its proper divisors (1399815312).

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

674633568 is a wasteful number, since it uses less digits than its factorization.

674633568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1014 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 48.

The square root of 674633568 is about 25973.7091690810. The cubic root of 674633568 is about 877.0465588549.

The spelling of 674633568 in words is "six hundred seventy-four million, six hundred thirty-three thousand, five hundred sixty-eight".