22430091 has 4 divisors (see below), whose sum is σ = 29906792. Its totient is φ = 14953392.

The previous prime is 22430069. The next prime is 22430099. The reversal of 22430091 is 19003422.

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

It is not a de Polignac number, because 22430091 - 2²² = 18235787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22430099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3738346 + ... + 3738351.

It is an arithmetic number, because the mean of its divisors is an integer number (7476698).

Almost surely, 2^22430091 is an apocalyptic number.

22430091 is a deficient number, since it is larger than the sum of its proper divisors (7476701).

22430091 is an equidigital number, since it uses as much as digits as its factorization.

22430091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7476700.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 22430091 is about 4736.0417016745. The cubic root of 22430091 is about 282.0181191517.

The spelling of 22430091 in words is "twenty-two million, four hundred thirty thousand, ninety-one".