20020244 has 12 divisors (see below), whose sum is σ = 35091924. Its totient is φ = 9993984.

The previous prime is 20020223. The next prime is 20020267. The reversal of 20020244 is 44202002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13322500 + 6697744 = 3650^2 + 2588^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989 + ... + 6404.

It is an arithmetic number, because the mean of its divisors is an integer number (2924327).

Almost surely, 2^20020244 is an apocalyptic number.

It is an amenable number.

20020244 is a deficient number, since it is larger than the sum of its proper divisors (15071680).

20020244 is a wasteful number, since it uses less digits than its factorization.

20020244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8074 (or 8072 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20020244 is about 4474.3987305559. The cubic root of 20020244 is about 271.5333152266.

Adding to 20020244 its reverse (44202002), we get a palindrome (64222246).

The spelling of 20020244 in words is "twenty million, twenty thousand, two hundred forty-four".