22229393 has 8 divisors (see below), whose sum is σ = 22690920. Its totient is φ = 21772800.

The previous prime is 22229381. The next prime is 22229401. The reversal of 22229393 is 39392222.

It can be written as a sum of positive squares in 4 ways, for example, as 2930944 + 19298449 = 1712^2 + 4393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22229393 - 2⁴ = 22229377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22229593) 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 7 ways as a sum of consecutive naturals, for example, 8663 + ... + 10931.

It is an arithmetic number, because the mean of its divisors is an integer number (2836365).

Almost surely, 2^22229393 is an apocalyptic number.

It is an amenable number.

22229393 is a deficient number, since it is larger than the sum of its proper divisors (461527).

22229393 is a wasteful number, since it uses less digits than its factorization.

22229393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467.

The product of its digits is 11664, while the sum is 32.

The square root of 22229393 is about 4714.8057224026. The cubic root of 22229393 is about 281.1744588562.

It can be divided in two parts, 22229 and 393, that added together give a palindrome (22622).

The spelling of 22229393 in words is "twenty-two million, two hundred twenty-nine thousand, three hundred ninety-three".