680005452 has 24 divisors (see below), whose sum is σ = 1813348096. Its totient is φ = 194287248.

The previous prime is 680005441. The next prime is 680005477. The reversal of 680005452 is 254500086.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4047568 + ... + 4047735.

Almost surely, 2^680005452 is an apocalyptic number.

It is an amenable number.

680005452 is an abundant number, since it is smaller than the sum of its proper divisors (1133342644).

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

680005452 is a wasteful number, since it uses less digits than its factorization.

680005452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095317 (or 8095315 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 680005452 is about 26076.9141579290. The cubic root of 680005452 is about 879.3682845739.

The spelling of 680005452 in words is "six hundred eighty million, five thousand, four hundred fifty-two".