22421242 has 8 divisors (see below), whose sum is σ = 33663636. Its totient is φ = 11200032.

The previous prime is 22421233. The next prime is 22421281. The reversal of 22421242 is 24212422.

It can be written as a sum of positive squares in 2 ways, for example, as 19793601 + 2627641 = 4449^2 + 1621^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313 + ... + 7084.

Almost surely, 2^22421242 is an apocalyptic number.

22421242 is a deficient number, since it is larger than the sum of its proper divisors (11242394).

22421242 is a wasteful number, since it uses less digits than its factorization.

22421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10592.

The product of its digits is 512, while the sum is 19.

The square root of 22421242 is about 4735.1073905456. The cubic root of 22421242 is about 281.9810275115.

Adding to 22421242 its reverse (24212422), we get a palindrome (46633664).

It can be divided in two parts, 2 and 2421242, that multiplied together give a palindrome (4842484).

The spelling of 22421242 in words is "twenty-two million, four hundred twenty-one thousand, two hundred forty-two".