680146444 has 12 divisors (see below), whose sum is σ = 1190632968. Its totient is φ = 339965600.

The previous prime is 680146427. The next prime is 680146487. The reversal of 680146444 is 444641086.

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 3 ways as a sum of consecutive naturals, for example, 11737 + ... + 38704.

It is an arithmetic number, because the mean of its divisors is an integer number (99219414).

Almost surely, 2^680146444 is an apocalyptic number.

It is an amenable number.

680146444 is a deficient number, since it is larger than the sum of its proper divisors (510486524).

680146444 is a wasteful number, since it uses less digits than its factorization.

680146444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53816 (or 53814 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 680146444 is about 26079.6174051691. The cubic root of 680146444 is about 879.4290563049.

The spelling of 680146444 in words is "six hundred eighty million, one hundred forty-six thousand, four hundred forty-four".