215047422 has 12 divisors (see below), whose sum is σ = 465936120. Its totient is φ = 71682468.

The previous prime is 215047381. The next prime is 215047463. The reversal of 215047422 is 224740512.

It is an interprime number because it is at equal distance from previous prime (215047381) and next prime (215047463).

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 5 ways as a sum of consecutive naturals, for example, 5973522 + ... + 5973557.

It is an arithmetic number, because the mean of its divisors is an integer number (38828010).

Almost surely, 2^215047422 is an apocalyptic number.

215047422 is an abundant number, since it is smaller than the sum of its proper divisors (250888698).

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

215047422 is a wasteful number, since it uses less digits than its factorization.

215047422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11947087 (or 11947084 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 215047422 is about 14664.4952862347. The cubic root of 215047422 is about 599.1166835583.

Adding to 215047422 its reverse (224740512), we get a palindrome (439787934).

The spelling of 215047422 in words is "two hundred fifteen million, forty-seven thousand, four hundred twenty-two".