22010444 has 24 divisors (see below), whose sum is σ = 41041728. Its totient is φ = 10292480.

The previous prime is 22010431. The next prime is 22010477. The reversal of 22010444 is 44401022.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10829 + ... + 12699.

It is an arithmetic number, because the mean of its divisors is an integer number (1710072).

Almost surely, 2^22010444 is an apocalyptic number.

It is an amenable number.

22010444 is a deficient number, since it is larger than the sum of its proper divisors (19031284).

22010444 is a wasteful number, since it uses less digits than its factorization.

22010444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2063 counting only the distinct ones).

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

The square root of 22010444 is about 4691.5289618631. The cubic root of 22010444 is about 280.2482662005.

Adding to 22010444 its reverse (44401022), we get a palindrome (66411466).

The spelling of 22010444 in words is "twenty-two million, ten thousand, four hundred forty-four".