215268 has 12 divisors (see below), whose sum is σ = 502320. Its totient is φ = 71752.

The previous prime is 215261. The next prime is 215273. The reversal of 215268 is 862512.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (215261) 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, 8958 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (41860).

2²¹⁵²⁶⁸ is an apocalyptic number.

It is an amenable number.

215268 is an abundant number, since it is smaller than the sum of its proper divisors (287052).

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

215268 is a wasteful number, since it uses less digits than its factorization.

215268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17946 (or 17944 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 215268 is about 463.9698266051. The cubic root of 215268 is about 59.9321455140.

The spelling of 215268 in words is "two hundred fifteen thousand, two hundred sixty-eight".