22366091 has 4 divisors (see below), whose sum is σ = 24399384. Its totient is φ = 20332800.

The previous prime is 22366087. The next prime is 22366109. The reversal of 22366091 is 19066322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22366091 - 2² = 22366087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22366391) 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, 1016630 + ... + 1016651.

It is an arithmetic number, because the mean of its divisors is an integer number (6099846).

Almost surely, 2^22366091 is an apocalyptic number.

22366091 is a deficient number, since it is larger than the sum of its proper divisors (2033293).

22366091 is a wasteful number, since it uses less digits than its factorization.

22366091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033292.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 22366091 is about 4729.2801777860. The cubic root of 22366091 is about 281.7496352728.

The spelling of 22366091 in words is "twenty-two million, three hundred sixty-six thousand, ninety-one".