681179320 has 32 divisors (see below), whose sum is σ = 1561576320. Its totient is φ = 267329920.

The previous prime is 681179281. The next prime is 681179321. The reversal of 681179320 is 23971186.

681179320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×681179320³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 681179320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681179321) 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, 158536 + ... + 162775.

It is an arithmetic number, because the mean of its divisors is an integer number (48799260).

Almost surely, 2^681179320 is an apocalyptic number.

It is an amenable number.

681179320 is an abundant number, since it is smaller than the sum of its proper divisors (880397000).

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

681179320 is a wasteful number, since it uses less digits than its factorization.

681179320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321375 (or 321371 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 681179320 is about 26099.4122539187. The cubic root of 681179320 is about 879.8740005552.

The spelling of 681179320 in words is "six hundred eighty-one million, one hundred seventy-nine thousand, three hundred twenty".