680270720 has 64 divisors (see below), whose sum is σ = 1636500240. Its totient is φ = 270397440.

The previous prime is 680270713. The next prime is 680270743. The reversal of 680270720 is 27072086.

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

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 101060 + ... + 107580.

Almost surely, 2^680270720 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 680270720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818250120).

680270720 is an abundant number, since it is smaller than the sum of its proper divisors (956229520).

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

680270720 is a wasteful number, since it uses less digits than its factorization.

680270720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703 (or 6691 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 680270720 is about 26081.9999233188. Note that the first 4 decimals coincide. The cubic root of 680270720 is about 879.4826159809.

680270720 divided by its sum of digits (32) gives a triangular number (21258460 = T₆₅₂₀).

The spelling of 680270720 in words is "six hundred eighty million, two hundred seventy thousand, seven hundred twenty".