674802816 has 128 divisors (see below), whose sum is σ = 1837762560. Its totient is φ = 219340800.

The previous prime is 674802787. The next prime is 674802833. The reversal of 674802816 is 618208476.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4925500 + ... + 4925636.

It is an arithmetic number, because the mean of its divisors is an integer number (14357520).

Almost surely, 2^674802816 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 674802816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918881280).

674802816 is an abundant number, since it is smaller than the sum of its proper divisors (1162959744).

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

674802816 is a wasteful number, since it uses less digits than its factorization.

674802816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 674802816 is about 25976.9670285043. The cubic root of 674802816 is about 877.1198954392.

The spelling of 674802816 in words is "six hundred seventy-four million, eight hundred two thousand, eight hundred sixteen".