681626360 has 32 divisors (see below), whose sum is σ = 1538587440. Its totient is φ = 271774464.

The previous prime is 681626359. The next prime is 681626369. The reversal of 681626360 is 63626186.

It is a super-2 number, since 2×681626360² = 929228989293699200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681626369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14702 + ... + 39741.

Almost surely, 2^681626360 is an apocalyptic number.

It is an amenable number.

681626360 is an abundant number, since it is smaller than the sum of its proper divisors (856961080).

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

681626360 is a wasteful number, since it uses less digits than its factorization.

681626360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54767 (or 54763 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 681626360 is about 26107.9750267998. The cubic root of 681626360 is about 880.0664378214.

The spelling of 681626360 in words is "six hundred eighty-one million, six hundred twenty-six thousand, three hundred sixty".