215342204 has 48 divisors (see below), whose sum is σ = 470969856. Its totient is φ = 83697600.

The previous prime is 215342177. The next prime is 215342273. The reversal of 215342204 is 402243512.

It is a happy number.

215342204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215342204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228374 + ... + 229314.

It is an arithmetic number, because the mean of its divisors is an integer number (9811872).

Almost surely, 2^215342204 is an apocalyptic number.

It is an amenable number.

215342204 is an abundant number, since it is smaller than the sum of its proper divisors (255627652).

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

215342204 is a wasteful number, since it uses less digits than its factorization.

215342204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 215342204 is about 14674.5427185994. The cubic root of 215342204 is about 599.3903103036.

Adding to 215342204 its reverse (402243512), we get a palindrome (617585716).

The spelling of 215342204 in words is "two hundred fifteen million, three hundred forty-two thousand, two hundred four".