13622266 has 16 divisors (see below), whose sum is σ = 23405760. Its totient is φ = 5824800.

The previous prime is 13622177. The next prime is 13622269. The reversal of 13622266 is 66222631.

It is a happy number.

It is a super-2 number, since 2×13622266² = 371132261949512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13622269) 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, 7605 + ... + 9223.

It is an arithmetic number, because the mean of its divisors is an integer number (1462860).

Almost surely, 2^13622266 is an apocalyptic number.

13622266 is a deficient number, since it is larger than the sum of its proper divisors (9783494).

13622266 is a wasteful number, since it uses less digits than its factorization.

13622266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229.

The product of its digits is 5184, while the sum is 28.

The square root of 13622266 is about 3690.8354067880. The cubic root of 13622266 is about 238.8268325399.

Adding to 13622266 its reverse (66222631), we get a palindrome (79844897).

The spelling of 13622266 in words is "thirteen million, six hundred twenty-two thousand, two hundred sixty-six".