681833228 has 12 divisors (see below), whose sum is σ = 1196751192. Its totient is φ = 339904320.

The previous prime is 681833227. The next prime is 681833231. The reversal of 681833228 is 822338186.

It is not an unprimeable number, because it can be changed into a prime (681833227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251558 + ... + 254253.

It is an arithmetic number, because the mean of its divisors is an integer number (99729266).

Almost surely, 2^681833228 is an apocalyptic number.

It is an amenable number.

681833228 is a deficient number, since it is larger than the sum of its proper divisors (514917964).

681833228 is a wasteful number, since it uses less digits than its factorization.

681833228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506152 (or 506150 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 681833228 is about 26111.9365042120. The cubic root of 681833228 is about 880.1554597940.

The spelling of 681833228 in words is "six hundred eighty-one million, eight hundred thirty-three thousand, two hundred twenty-eight".