674690944 has 64 divisors (see below), whose sum is σ = 1396241280. Its totient is φ = 324403200.

The previous prime is 674690911. The next prime is 674690963. The reversal of 674690944 is 449096476.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×674690944² = 910415739831222272, 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 7 ways as a sum of consecutive naturals, for example, 765384 + ... + 766264.

It is an arithmetic number, because the mean of its divisors is an integer number (21816270).

Almost surely, 2^674690944 is an apocalyptic number.

674690944 is a gapful number since it is divisible by the number (64) 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 674690944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698120640).

674690944 is an abundant number, since it is smaller than the sum of its proper divisors (721550336).

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

674690944 is a wasteful number, since it uses less digits than its factorization.

674690944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 674690944 is about 25974.8136470697. The cubic root of 674690944 is about 877.0714217332.

The spelling of 674690944 in words is "six hundred seventy-four million, six hundred ninety thousand, nine hundred forty-four".