22412443 has 4 divisors (see below), whose sum is σ = 23730840. Its totient is φ = 21094048.

The previous prime is 22412393. The next prime is 22412461. The reversal of 22412443 is 34421422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22412443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22412483) 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, 659173 + ... + 659206.

It is an arithmetic number, because the mean of its divisors is an integer number (5932710).

Almost surely, 2^22412443 is an apocalyptic number.

22412443 is a deficient number, since it is larger than the sum of its proper divisors (1318397).

22412443 is a wasteful number, since it uses less digits than its factorization.

22412443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318396.

The product of its digits is 1536, while the sum is 22.

The square root of 22412443 is about 4734.1781757767. The cubic root of 22412443 is about 281.9441357744.

Adding to 22412443 its reverse (34421422), we get a palindrome (56833865).

The spelling of 22412443 in words is "twenty-two million, four hundred twelve thousand, four hundred forty-three".