674721600 has 336 divisors, whose sum is σ = 2594262528. Its totient is φ = 150312960.

The previous prime is 674721599. The next prime is 674721659. The reversal of 674721600 is 6127476.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1444567 + ... + 1445033.

Almost surely, 2^674721600 is an apocalyptic number.

674721600 is a gapful number since it is divisible by the number (60) 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 674721600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297131264).

674721600 is an abundant number, since it is smaller than the sum of its proper divisors (1919540928).

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

674721600 is a wasteful number, since it uses less digits than its factorization.

674721600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 674721600 is about 25975.4037504713. The cubic root of 674721600 is about 877.0847053927.

The spelling of 674721600 in words is "six hundred seventy-four million, seven hundred twenty-one thousand, six hundred".