22213430 has 8 divisors (see below), whose sum is σ = 39984192. Its totient is φ = 8885368.

The previous prime is 22213417. The next prime is 22213439. The reversal of 22213430 is 3431222.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22213399 and 22213408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110662 + ... + 1110681.

It is an arithmetic number, because the mean of its divisors is an integer number (4998024).

Almost surely, 2^22213430 is an apocalyptic number.

22213430 is a deficient number, since it is larger than the sum of its proper divisors (17770762).

22213430 is a wasteful number, since it uses less digits than its factorization.

22213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221350.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22213430 is about 4713.1125596574. The cubic root of 22213430 is about 281.1071386391.

Adding to 22213430 its reverse (3431222), we get a palindrome (25644652).

The spelling of 22213430 in words is "twenty-two million, two hundred thirteen thousand, four hundred thirty".