680385432 has 16 divisors (see below), whose sum is σ = 1700963640. Its totient is φ = 226795136.

The previous prime is 680385413. The next prime is 680385437. The reversal of 680385432 is 234583086.

680385432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680385437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14174673 + ... + 14174720.

Almost surely, 2^680385432 is an apocalyptic number.

It is an amenable number.

680385432 is an abundant number, since it is smaller than the sum of its proper divisors (1020578208).

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

680385432 is a wasteful number, since it uses less digits than its factorization.

680385432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28349402 (or 28349398 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 680385432 is about 26084.1988951166. The cubic root of 680385432 is about 879.5320480362.

It can be divided in two parts, 6803 and 85432, that added together give a triangular number (92235 = T₄₂₉).

The spelling of 680385432 in words is "six hundred eighty million, three hundred eighty-five thousand, four hundred thirty-two".