22284238 has 16 divisors (see below), whose sum is σ = 35426160. Its totient is φ = 10494400.

The previous prime is 22284211. The next prime is 22284239. The reversal of 22284238 is 83248222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22284239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308 + ... + 7063.

It is an arithmetic number, because the mean of its divisors is an integer number (2214135).

Almost surely, 2^22284238 is an apocalyptic number.

22284238 is a deficient number, since it is larger than the sum of its proper divisors (13141922).

22284238 is a wasteful number, since it uses less digits than its factorization.

22284238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9443.

The product of its digits is 12288, while the sum is 31.

The square root of 22284238 is about 4720.6183916940. The cubic root of 22284238 is about 281.4055095220.

It can be divided in two parts, 22284 and 238, that added together give a palindrome (22522).

The spelling of 22284238 in words is "twenty-two million, two hundred eighty-four thousand, two hundred thirty-eight".