674706816 has 192 divisors, whose sum is σ = 2291328000. Its totient is φ = 186485760.

The previous prime is 674706763. The next prime is 674706821. The reversal of 674706816 is 618607476.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248635 + ... + 251333.

It is an arithmetic number, because the mean of its divisors is an integer number (11934000).

Almost surely, 2^674706816 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 674706816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145664000).

674706816 is an abundant number, since it is smaller than the sum of its proper divisors (1616621184).

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

674706816 is a wasteful number, since it uses less digits than its factorization.

674706816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 674706816 is about 25975.1191720077. The cubic root of 674706816 is about 877.0782993358.

The spelling of 674706816 in words is "six hundred seventy-four million, seven hundred six thousand, eight hundred sixteen".