215828512 has 24 divisors (see below), whose sum is σ = 433956096. Its totient is φ = 105617472.

The previous prime is 215828491. The next prime is 215828519.

It is a happy number.

215828512 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (215828519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70248 + ... + 73255.

It is an arithmetic number, because the mean of its divisors is an integer number (18081504).

Almost surely, 2^215828512 is an apocalyptic number.

It is an amenable number.

215828512 is an abundant number, since it is smaller than the sum of its proper divisors (218127584).

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

215828512 is a wasteful number, since it uses less digits than its factorization.

215828512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143560 (or 143552 counting only the distinct ones).

The product of its digits is 12800, while the sum is 34.

The square root of 215828512 is about 14691.1031580341. The cubic root of 215828512 is about 599.8411727750.

The spelling of 215828512 in words is "two hundred fifteen million, eight hundred twenty-eight thousand, five hundred twelve".