22432213 has 4 divisors (see below), whose sum is σ = 22812480. Its totient is φ = 22051948.

The previous prime is 22432187. The next prime is 22432219. The reversal of 22432213 is 31223422.

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 a de Polignac number, because none of the positive numbers 2^k-22432213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22432219) 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, 190045 + ... + 190162.

It is an arithmetic number, because the mean of its divisors is an integer number (5703120).

Almost surely, 2^22432213 is an apocalyptic number.

It is an amenable number.

22432213 is a deficient number, since it is larger than the sum of its proper divisors (380267).

22432213 is an equidigital number, since it uses as much as digits as its factorization.

22432213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380266.

The product of its digits is 576, while the sum is 19.

The square root of 22432213 is about 4736.2657231199. The cubic root of 22432213 is about 282.0270123178.

Adding to 22432213 its reverse (31223422), we get a palindrome (53655635).

The spelling of 22432213 in words is "twenty-two million, four hundred thirty-two thousand, two hundred thirteen".