680724384 has 48 divisors (see below), whose sum is σ = 1790540640. Its totient is φ = 226446080.

The previous prime is 680724383. The next prime is 680724389. The reversal of 680724384 is 483427086.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (680724383) by changing a digit.

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, 41899 + ... + 55829.

It is an arithmetic number, because the mean of its divisors is an integer number (37302930).

Almost surely, 2^680724384 is an apocalyptic number.

It is an amenable number.

680724384 is an abundant number, since it is smaller than the sum of its proper divisors (1109816256).

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

680724384 is a wasteful number, since it uses less digits than its factorization.

680724384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14453 (or 14445 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 680724384 is about 26090.6953529414. The cubic root of 680724384 is about 879.6780778409.

The spelling of 680724384 in words is "six hundred eighty million, seven hundred twenty-four thousand, three hundred eighty-four".