215342216 has 32 divisors (see below), whose sum is σ = 409543680. Its totient is φ = 106142400.

The previous prime is 215342177. The next prime is 215342273. The reversal of 215342216 is 612243512.

It is a happy number.

215342216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183311 + ... + 184481.

It is an arithmetic number, because the mean of its divisors is an integer number (12798240).

Almost surely, 2^215342216 is an apocalyptic number.

It is an amenable number.

215342216 is a deficient number, since it is larger than the sum of its proper divisors (194201464).

215342216 is a wasteful number, since it uses less digits than its factorization.

215342216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1481 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 215342216 is about 14674.5431274708. The cubic root of 215342216 is about 599.3903214373.

Adding to 215342216 its reverse (612243512), we get a palindrome (827585728).

The spelling of 215342216 in words is "two hundred fifteen million, three hundred forty-two thousand, two hundred sixteen".