815882322 has 8 divisors (see below), whose sum is σ = 1631764656. Its totient is φ = 271960772.

The previous prime is 815882311. The next prime is 815882339. The reversal of 815882322 is 223288518.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

815882322 is an admirable number.

It is a super-2 number, since 2×815882322² = 1331327926704223368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67990188 + ... + 67990199.

It is an arithmetic number, because the mean of its divisors is an integer number (203970582).

Almost surely, 2^815882322 is an apocalyptic number.

815882322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

815882322 is a wasteful number, since it uses less digits than its factorization.

815882322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135980392.

The product of its digits is 61440, while the sum is 39.

The square root of 815882322 is about 28563.6538629077. The cubic root of 815882322 is about 934.4208227353.

The spelling of 815882322 in words is "eight hundred fifteen million, eight hundred eighty-two thousand, three hundred twenty-two".