20322244 has 6 divisors (see below), whose sum is σ = 35563934. Its totient is φ = 10161120.

The previous prime is 20322241. The next prime is 20322257. The reversal of 20322244 is 44222302.

It can be written as a sum of positive squares in only one way, i.e., 14976900 + 5345344 = 3870^2 + 2312^2 .

It is not an unprimeable number, because it can be changed into a prime (20322241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540277 + ... + 2540284.

Almost surely, 2^20322244 is an apocalyptic number.

It is an amenable number.

20322244 is a deficient number, since it is larger than the sum of its proper divisors (15241690).

20322244 is a wasteful number, since it uses less digits than its factorization.

20322244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080565 (or 5080563 counting only the distinct ones).

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

The square root of 20322244 is about 4508.0199644633. The cubic root of 20322244 is about 272.8918426411.

Adding to 20322244 its reverse (44222302), we get a palindrome (64544546).

The spelling of 20322244 in words is "twenty million, three hundred twenty-two thousand, two hundred forty-four".