22412091 has 16 divisors (see below), whose sum is σ = 32868864. Its totient is φ = 13497504.

The previous prime is 22412087. The next prime is 22412107. The reversal of 22412091 is 19021422.

It is not a de Polignac number, because 22412091 - 2² = 22412087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22412021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4281 + ... + 7946.

It is an arithmetic number, because the mean of its divisors is an integer number (2054304).

Almost surely, 2^22412091 is an apocalyptic number.

22412091 is a deficient number, since it is larger than the sum of its proper divisors (10456773).

22412091 is a wasteful number, since it uses less digits than its factorization.

22412091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12290.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 22412091 is about 4734.1409991676. The cubic root of 22412091 is about 281.9426597363.

The spelling of 22412091 in words is "twenty-two million, four hundred twelve thousand, ninety-one".