22152442 has 16 divisors (see below), whose sum is σ = 37668960. Its totient is φ = 9685872.

The previous prime is 22152437. The next prime is 22152467. The reversal of 22152442 is 24425122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21928 + ... + 22915.

It is an arithmetic number, because the mean of its divisors is an integer number (2354310).

Almost surely, 2^22152442 is an apocalyptic number.

22152442 is a deficient number, since it is larger than the sum of its proper divisors (15516518).

22152442 is a wasteful number, since it uses less digits than its factorization.

22152442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44877.

The product of its digits is 1280, while the sum is 22.

The square root of 22152442 is about 4706.6380782890. The cubic root of 22152442 is about 280.8496386165.

Adding to 22152442 its reverse (24425122), we get a palindrome (46577564).

The spelling of 22152442 in words is "twenty-two million, one hundred fifty-two thousand, four hundred forty-two".