22226542 has 24 divisors (see below), whose sum is σ = 38012760. Its totient is φ = 9715680.

The previous prime is 22226507. The next prime is 22226543. The reversal of 22226542 is 24562222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22226543) 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 11 ways as a sum of consecutive naturals, for example, 4692 + ... + 8152.

It is an arithmetic number, because the mean of its divisors is an integer number (1583865).

Almost surely, 2^22226542 is an apocalyptic number.

22226542 is a deficient number, since it is larger than the sum of its proper divisors (15786218).

22226542 is a wasteful number, since it uses less digits than its factorization.

22226542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508 (or 3495 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 22226542 is about 4714.5033672700. The cubic root of 22226542 is about 281.1624377954.

Adding to 22226542 its reverse (24562222), we get a palindrome (46788764).

The spelling of 22226542 in words is "twenty-two million, two hundred twenty-six thousand, five hundred forty-two".