215322852 has 24 divisors (see below), whose sum is σ = 502941600. Its totient is φ = 71699776.

The previous prime is 215322847. The next prime is 215322853. The reversal of 215322852 is 258223512.

It is not an unprimeable number, because it can be changed into a prime (215322853) 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 7 ways as a sum of consecutive naturals, for example, 3424 + ... + 21032.

It is an arithmetic number, because the mean of its divisors is an integer number (20955900).

Almost surely, 2^215322852 is an apocalyptic number.

It is an amenable number.

215322852 is an abundant number, since it is smaller than the sum of its proper divisors (287618748).

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

215322852 is a wasteful number, since it uses less digits than its factorization.

215322852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18635 (or 18633 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 215322852 is about 14673.8833305979. The cubic root of 215322852 is about 599.3723547758.

The spelling of 215322852 in words is "two hundred fifteen million, three hundred twenty-two thousand, eight hundred fifty-two".