20442322 has 8 divisors (see below), whose sum is σ = 30683772. Its totient is φ = 10214400.

The previous prime is 20442293. The next prime is 20442349. The reversal of 20442322 is 22324402.

It can be written as a sum of positive squares in 2 ways, for example, as 19616041 + 826281 = 4429^2 + 909^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20442322.

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, 2322 + ... + 6802.

Almost surely, 2^20442322 is an apocalyptic number.

20442322 is a deficient number, since it is larger than the sum of its proper divisors (10241450).

20442322 is a wasteful number, since it uses less digits than its factorization.

20442322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20442322 is about 4521.3186129712. The cubic root of 20442322 is about 273.4282659869.

Adding to 20442322 its reverse (22324402), we get a palindrome (42766724).

The spelling of 20442322 in words is "twenty million, four hundred forty-two thousand, three hundred twenty-two".