215022238 has 8 divisors (see below), whose sum is σ = 322692480. Its totient is φ = 107458080.

The previous prime is 215022217. The next prime is 215022251. The reversal of 215022238 is 832220512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21243 + ... + 29686.

It is an arithmetic number, because the mean of its divisors is an integer number (40336560).

Almost surely, 2^215022238 is an apocalyptic number.

215022238 is a deficient number, since it is larger than the sum of its proper divisors (107670242).

215022238 is a wasteful number, since it uses less digits than its factorization.

215022238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53042.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 215022238 is about 14663.6365885138. The cubic root of 215022238 is about 599.0932953160.

The spelling of 215022238 in words is "two hundred fifteen million, twenty-two thousand, two hundred thirty-eight".