681037488 has 30 divisors (see below), whose sum is σ = 1905959484. Its totient is φ = 227012448.

The previous prime is 681037457. The next prime is 681037499. The reversal of 681037488 is 884730186.

681037488 is a `hidden beast` number, since 68 + 103 + 7 + 488 = 666.

681037488 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-2 number, since 2×681037488² = 927624120122700288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2364570 + ... + 2364857.

Almost surely, 2^681037488 is an apocalyptic number.

It is an amenable number.

681037488 is an abundant number, since it is smaller than the sum of its proper divisors (1224921996).

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

681037488 is a wasteful number, since it uses less digits than its factorization.

681037488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729441 (or 4729432 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 681037488 is about 26096.6949631558. The cubic root of 681037488 is about 879.8129285545.

The spelling of 681037488 in words is "six hundred eighty-one million, thirty-seven thousand, four hundred eighty-eight".