22287266 has 16 divisors (see below), whose sum is σ = 35544960. Its totient is φ = 10450800.

The previous prime is 22287263. The next prime is 22287269. The reversal of 22287266 is 66278222.

It is an interprime number because it is at equal distance from previous prime (22287263) and next prime (22287269).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22287263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935 + ... + 6741.

It is an arithmetic number, because the mean of its divisors is an integer number (2221560).

Almost surely, 2^22287266 is an apocalyptic number.

22287266 is a deficient number, since it is larger than the sum of its proper divisors (13257694).

22287266 is a wasteful number, since it uses less digits than its factorization.

22287266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5929.

The product of its digits is 32256, while the sum is 35.

The square root of 22287266 is about 4720.9391014924. The cubic root of 22287266 is about 281.4182548130.

The spelling of 22287266 in words is "twenty-two million, two hundred eighty-seven thousand, two hundred sixty-six".