22243430 has 48 divisors (see below), whose sum is σ = 45505152. Its totient is φ = 7814400.

The previous prime is 22243423. The next prime is 22243439. The reversal of 22243430 is 3434222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37214 + ... + 37806.

It is an arithmetic number, because the mean of its divisors is an integer number (948024).

Almost surely, 2^22243430 is an apocalyptic number.

22243430 is an abundant number, since it is smaller than the sum of its proper divisors (23261722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22243430 is a wasteful number, since it uses less digits than its factorization.

22243430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22243430 is about 4716.2940960038. The cubic root of 22243430 is about 281.2336299937.

Adding to 22243430 its reverse (3434222), we get a palindrome (25677652).

The spelling of 22243430 in words is "twenty-two million, two hundred forty-three thousand, four hundred thirty".