22140044 has 6 divisors (see below), whose sum is σ = 38745084. Its totient is φ = 11070020.

The previous prime is 22140029. The next prime is 22140047. The reversal of 22140044 is 44004122.

It is not an unprimeable number, because it can be changed into a prime (22140047) by changing a digit.

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 as a sum of consecutive naturals, namely, 2767502 + ... + 2767509.

It is an arithmetic number, because the mean of its divisors is an integer number (6457514).

Almost surely, 2^22140044 is an apocalyptic number.

It is an amenable number.

22140044 is a deficient number, since it is larger than the sum of its proper divisors (16605040).

22140044 is a wasteful number, since it uses less digits than its factorization.

22140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535015 (or 5535013 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22140044 is about 4705.3208179677. The cubic root of 22140044 is about 280.7972347084.

Adding to 22140044 its reverse (44004122), we get a palindrome (66144166).

The spelling of 22140044 in words is "twenty-two million, one hundred forty thousand, forty-four".