674845944 has 128 divisors (see below), whose sum is σ = 1838592000. Its totient is φ = 205793280.

The previous prime is 674845939. The next prime is 674845981. The reversal of 674845944 is 449548476.

It is a happy number.

It is a super-2 number, since 2×674845944² = 910834096266502272, which contains 22 as substring.

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, 1933482 + ... + 1933830.

It is an arithmetic number, because the mean of its divisors is an integer number (14364000).

Almost surely, 2^674845944 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 674845944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919296000).

674845944 is an abundant number, since it is smaller than the sum of its proper divisors (1163746056).

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

674845944 is a wasteful number, since it uses less digits than its factorization.

674845944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 521 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 51.

The square root of 674845944 is about 25977.7971352461. The cubic root of 674845944 is about 877.1385812045.

The spelling of 674845944 in words is "six hundred seventy-four million, eight hundred forty-five thousand, nine hundred forty-four".