22402266 has 16 divisors (see below), whose sum is σ = 44921088. Its totient is φ = 7448000.

The previous prime is 22402223. The next prime is 22402271. The reversal of 22402266 is 66220422.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 2250 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (2807568).

Almost surely, 2^22402266 is an apocalyptic number.

22402266 is an abundant number, since it is smaller than the sum of its proper divisors (22518822).

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

22402266 is a wasteful number, since it uses less digits than its factorization.

22402266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9717.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22402266 is about 4733.1032103684. The cubic root of 22402266 is about 281.9014544257.

Adding to 22402266 its reverse (66220422), we get a palindrome (88622688).

The spelling of 22402266 in words is "twenty-two million, four hundred two thousand, two hundred sixty-six".