22440055 has 24 divisors (see below), whose sum is σ = 30643200. Its totient is φ = 15744960.

The previous prime is 22440049. The next prime is 22440059. The reversal of 22440055 is 55004422.

It is not a de Polignac number, because 22440055 - 2²³ = 14051447 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16906 + ... + 18184.

It is an arithmetic number, because the mean of its divisors is an integer number (1276800).

Almost surely, 2^22440055 is an apocalyptic number.

22440055 is a deficient number, since it is larger than the sum of its proper divisors (8203145).

22440055 is a wasteful number, since it uses less digits than its factorization.

22440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 22440055 is about 4737.0935181818. The cubic root of 22440055 is about 282.0598727725.

Adding to 22440055 its reverse (55004422), we get a palindrome (77444477).

The spelling of 22440055 in words is "twenty-two million, four hundred forty thousand, fifty-five".