22284215 has 8 divisors (see below), whose sum is σ = 27179808. Its totient is φ = 17534880.

The previous prime is 22284211. The next prime is 22284239. The reversal of 22284215 is 51248222.

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

It is not a de Polignac number, because 22284215 - 2² = 22284211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22284211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36227 + ... + 36836.

It is an arithmetic number, because the mean of its divisors is an integer number (3397476).

Almost surely, 2^22284215 is an apocalyptic number.

22284215 is a deficient number, since it is larger than the sum of its proper divisors (4895593).

22284215 is an equidigital number, since it uses as much as digits as its factorization.

22284215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73129.

The product of its digits is 2560, while the sum is 26.

The square root of 22284215 is about 4720.6159555719. The cubic root of 22284215 is about 281.4054127073.

It can be divided in two parts, 22284 and 215, that multiplied together give a triangular number (4791060 = T₃₀₉₅).

The spelling of 22284215 in words is "twenty-two million, two hundred eighty-four thousand, two hundred fifteen".