22424242 has 8 divisors (see below), whose sum is σ = 34418736. Its totient is φ = 10951332.

The previous prime is 22424239. The next prime is 22424249. The reversal of 22424242 is 24242422.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (22424249) 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, 130288 + ... + 130459.

It is an arithmetic number, because the mean of its divisors is an integer number (4302342).

Almost surely, 2^22424242 is an apocalyptic number.

22424242 is a deficient number, since it is larger than the sum of its proper divisors (11994494).

22424242 is a wasteful number, since it uses less digits than its factorization.

22424242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260792.

The product of its digits is 2048, while the sum is 22.

The square root of 22424242 is about 4735.4241626279. The cubic root of 22424242 is about 281.9936034630.

Adding to 22424242 its reverse (24242422), we get a palindrome (46666664).

It can be divided in two parts, 2 and 2424242, that multiplied together give a palindrome (4848484).

The spelling of 22424242 in words is "twenty-two million, four hundred twenty-four thousand, two hundred forty-two".