22127442 has 16 divisors (see below), whose sum is σ = 44375040. Its totient is φ = 7355792.

The previous prime is 22127437. The next prime is 22127453. The reversal of 22127442 is 24472122.

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, 2517 + ... + 7112.

It is an arithmetic number, because the mean of its divisors is an integer number (2773440).

Almost surely, 2^22127442 is an apocalyptic number.

22127442 is an abundant number, since it is smaller than the sum of its proper divisors (22247598).

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

22127442 is a wasteful number, since it uses less digits than its factorization.

22127442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017.

The product of its digits is 1792, while the sum is 24.

The square root of 22127442 is about 4703.9815050657. The cubic root of 22127442 is about 280.7439484796.

Adding to 22127442 its reverse (24472122), we get a palindrome (46599564).

The spelling of 22127442 in words is "twenty-two million, one hundred twenty-seven thousand, four hundred forty-two".