22443299 has 4 divisors (see below), whose sum is σ = 22920864. Its totient is φ = 21965736.

The previous prime is 22443257. The next prime is 22443301. The reversal of 22443299 is 99234422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22443299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22443229) 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, 238712 + ... + 238805.

It is an arithmetic number, because the mean of its divisors is an integer number (5730216).

Almost surely, 2^22443299 is an apocalyptic number.

22443299 is a deficient number, since it is larger than the sum of its proper divisors (477565).

22443299 is an equidigital number, since it uses as much as digits as its factorization.

22443299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477564.

The product of its digits is 31104, while the sum is 35.

The square root of 22443299 is about 4737.4359098567. The cubic root of 22443299 is about 282.0734639178.

The spelling of 22443299 in words is "twenty-two million, four hundred forty-three thousand, two hundred ninety-nine".