22243929 has 4 divisors (see below), whose sum is σ = 29658576. Its totient is φ = 14829284.

The previous prime is 22243891. The next prime is 22243987. The reversal of 22243929 is 92934222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22243929 - 2⁷ = 22243801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22243929.

It is not an unprimeable number, because it can be changed into a prime (22243229) 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, 3707319 + ... + 3707324.

It is an arithmetic number, because the mean of its divisors is an integer number (7414644).

Almost surely, 2^22243929 is an apocalyptic number.

It is an amenable number.

22243929 is a deficient number, since it is larger than the sum of its proper divisors (7414647).

22243929 is an equidigital number, since it uses as much as digits as its factorization.

22243929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414646.

The product of its digits is 15552, while the sum is 33.

The square root of 22243929 is about 4716.3469974123. The cubic root of 22243929 is about 281.2357330047.

It can be divided in two parts, 22 and 243929, that added together give a triangular number (243951 = T₆₉₈).

The spelling of 22243929 in words is "twenty-two million, two hundred forty-three thousand, nine hundred twenty-nine".