22269091 has 4 divisors (see below), whose sum is σ = 23982112. Its totient is φ = 20556072.

The previous prime is 22269061. The next prime is 22269097. The reversal of 22269091 is 19096222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19096222 = 2 ⋅9548111.

It is a cyclic number.

It is not a de Polignac number, because 22269091 - 2⁹ = 22268579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22269097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856491 + ... + 856516.

It is an arithmetic number, because the mean of its divisors is an integer number (5995528).

Almost surely, 2^22269091 is an apocalyptic number.

22269091 is a deficient number, since it is larger than the sum of its proper divisors (1713021).

22269091 is a wasteful number, since it uses less digits than its factorization.

22269091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713020.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 22269091 is about 4719.0137740846. The cubic root of 22269091 is about 281.3417362641.

The spelling of 22269091 in words is "twenty-two million, two hundred sixty-nine thousand, ninety-one".