681296322 has 32 divisors (see below), whose sum is σ = 1559279232. Its totient is φ = 194402304.

The previous prime is 681296321. The next prime is 681296327. The reversal of 681296322 is 223692186.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (681296321) 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 15 ways as a sum of consecutive naturals, for example, 23298 + ... + 43650.

It is an arithmetic number, because the mean of its divisors is an integer number (48727476).

Almost surely, 2^681296322 is an apocalyptic number.

681296322 is an abundant number, since it is smaller than the sum of its proper divisors (877982910).

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

681296322 is a wasteful number, since it uses less digits than its factorization.

681296322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21162.

The product of its digits is 62208, while the sum is 39.

The square root of 681296322 is about 26101.6536257763. The cubic root of 681296322 is about 879.9243745273.

The spelling of 681296322 in words is "six hundred eighty-one million, two hundred ninety-six thousand, three hundred twenty-two".