22408242 has 32 divisors (see below), whose sum is σ = 46915200. Its totient is φ = 7125888.

The previous prime is 22408229. The next prime is 22408247. The reversal of 22408242 is 24280422.

It is not an unprimeable number, because it can be changed into a prime (22408247) 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 15 ways as a sum of consecutive naturals, for example, 14763 + ... + 16209.

It is an arithmetic number, because the mean of its divisors is an integer number (1466100).

Almost surely, 2^22408242 is an apocalyptic number.

22408242 is an abundant number, since it is smaller than the sum of its proper divisors (24506958).

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

22408242 is a wasteful number, since it uses less digits than its factorization.

22408242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 22408242 is about 4733.7344665708. The cubic root of 22408242 is about 281.9265187550.

Adding to 22408242 its reverse (24280422), we get a palindrome (46688664).

The spelling of 22408242 in words is "twenty-two million, four hundred eight thousand, two hundred forty-two".