22232242 has 16 divisors (see below), whose sum is σ = 35215200. Its totient is φ = 10497600.

The previous prime is 22232233. The next prime is 22232257. The reversal of 22232242 is 24223222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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, 14509 + ... + 15967.

It is an arithmetic number, because the mean of its divisors is an integer number (2200950).

Almost surely, 2^22232242 is an apocalyptic number.

22232242 is a deficient number, since it is larger than the sum of its proper divisors (12982958).

22232242 is a wasteful number, since it uses less digits than its factorization.

22232242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881.

The product of its digits is 768, while the sum is 19.

The square root of 22232242 is about 4715.1078460625. The cubic root of 22232242 is about 281.1864704574.

Adding to 22232242 its reverse (24223222), we get a palindrome (46455464).

It can be divided in two parts, 2223 and 2242, that added together give a triangular number (4465 = T₉₄).

The spelling of 22232242 in words is "twenty-two million, two hundred thirty-two thousand, two hundred forty-two".