681833304 has 24 divisors (see below), whose sum is σ = 1846632060. Its totient is φ = 227277744.

The previous prime is 681833281. The next prime is 681833329. The reversal of 681833304 is 403338186.

It is a happy number.

681833304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 4734882 + ... + 4735025.

Almost surely, 2^681833304 is an apocalyptic number.

It is an amenable number.

681833304 is an abundant number, since it is smaller than the sum of its proper divisors (1164798756).

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

681833304 is a wasteful number, since it uses less digits than its factorization.

681833304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9469919 (or 9469912 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 681833304 is about 26111.9379594851. The cubic root of 681833304 is about 880.1554924959.

The spelling of 681833304 in words is "six hundred eighty-one million, eight hundred thirty-three thousand, three hundred four".