215342422 has 32 divisors (see below), whose sum is σ = 345814272. Its totient is φ = 100350624.

The previous prime is 215342419. The next prime is 215342431. The reversal of 215342422 is 224243512.

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, 329448 + ... + 330100.

It is an arithmetic number, because the mean of its divisors is an integer number (10806696).

Almost surely, 2^215342422 is an apocalyptic number.

215342422 is a deficient number, since it is larger than the sum of its proper divisors (130471850).

215342422 is a wasteful number, since it uses less digits than its factorization.

215342422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852.

The product of its digits is 3840, while the sum is 25.

The square root of 215342422 is about 14674.5501464270. The cubic root of 215342422 is about 599.3905125662.

Adding to 215342422 its reverse (224243512), we get a palindrome (439585934).

The spelling of 215342422 in words is "two hundred fifteen million, three hundred forty-two thousand, four hundred twenty-two".