680044032 has 80 divisors (see below), whose sum is σ = 2013018480. Its totient is φ = 226676736.

The previous prime is 680044031. The next prime is 680044051. The reversal of 680044032 is 230440086.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 680043987 and 680044005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680044031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10773 + ... + 38420.

It is an arithmetic number, because the mean of its divisors is an integer number (25162731).

Almost surely, 2^680044032 is an apocalyptic number.

It is an amenable number.

680044032 is an abundant number, since it is smaller than the sum of its proper divisors (1332974448).

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

680044032 is an equidigital number, since it uses as much as digits as its factorization.

680044032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49220 (or 49198 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 680044032 is about 26077.6538822034. The cubic root of 680044032 is about 879.3849145322.

The spelling of 680044032 in words is "six hundred eighty million, forty-four thousand, thirty-two".