681892360 has 32 divisors (see below), whose sum is σ = 1539126360. Its totient is φ = 271891456.

The previous prime is 681892333. The next prime is 681892363. The reversal of 681892360 is 63298186.

It can be written as a sum of positive squares in 4 ways, for example, as 166874724 + 515017636 = 12918^2 + 22694^2 .

It is not an unprimeable number, because it can be changed into a prime (681892363) 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, 14209 + ... + 39568.

Almost surely, 2^681892360 is an apocalyptic number.

It is an amenable number.

681892360 is an abundant number, since it is smaller than the sum of its proper divisors (857234000).

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

681892360 is a wasteful number, since it uses less digits than its factorization.

681892360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54105 (or 54101 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 681892360 is about 26113.0687587652. The cubic root of 681892360 is about 880.1809028916.

The spelling of 681892360 in words is "six hundred eighty-one million, eight hundred ninety-two thousand, three hundred sixty".