22442210 has 32 divisors (see below), whose sum is σ = 48885120. Its totient is φ = 7241472.

The previous prime is 22442209. The next prime is 22442219. The reversal of 22442210 is 1224422.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (22442219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8240 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (1527660).

Almost surely, 2^22442210 is an apocalyptic number.

22442210 is an abundant number, since it is smaller than the sum of its proper divisors (26442910).

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

22442210 is a wasteful number, since it uses less digits than its factorization.

22442210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18890.

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

The square root of 22442210 is about 4737.3209728706. The cubic root of 22442210 is about 282.0689015616.

Adding to 22442210 its reverse (1224422), we get a palindrome (23666632).

The spelling of 22442210 in words is "twenty-two million, four hundred forty-two thousand, two hundred ten".