22425242 has 12 divisors (see below), whose sum is σ = 39129930. Its totient is φ = 9610776.

The previous prime is 22425239. The next prime is 22425257. The reversal of 22425242 is 24252422.

It can be written as a sum of positive squares in only one way, i.e., 21799561 + 625681 = 4669^2 + 791^2 .

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 5 ways as a sum of consecutive naturals, for example, 114317 + ... + 114512.

Almost surely, 2^22425242 is an apocalyptic number.

22425242 is a deficient number, since it is larger than the sum of its proper divisors (16704688).

22425242 is a wasteful number, since it uses less digits than its factorization.

22425242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228845 (or 228838 counting only the distinct ones).

The product of its digits is 2560, while the sum is 23.

The square root of 22425242 is about 4735.5297486131. The cubic root of 22425242 is about 281.9977951976.

Adding to 22425242 its reverse (24252422), we get a palindrome (46677664).

The spelling of 22425242 in words is "twenty-two million, four hundred twenty-five thousand, two hundred forty-two".