22522442 has 4 divisors (see below), whose sum is σ = 33783666. Its totient is φ = 11261220.

The previous prime is 22522439. The next prime is 22522453. The reversal of 22522442 is 24422522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24422522 = 2 ⋅12211261.

It can be written as a sum of positive squares in only one way, i.e., 22005481 + 516961 = 4691^2 + 719^2 .

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 as a sum of consecutive naturals, namely, 5630609 + ... + 5630612.

Almost surely, 2^22522442 is an apocalyptic number.

22522442 is a deficient number, since it is larger than the sum of its proper divisors (11261224).

22522442 is a wasteful number, since it uses less digits than its factorization.

22522442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11261223.

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

The square root of 22522442 is about 4745.7814951807. The cubic root of 22522442 is about 282.4046384999.

Adding to 22522442 its reverse (24422522), we get a palindrome (46944964).

The spelling of 22522442 in words is "twenty-two million, five hundred twenty-two thousand, four hundred forty-two".