20302244 has 6 divisors (see below), whose sum is σ = 35528934. Its totient is φ = 10151120.

The previous prime is 20302223. The next prime is 20302259. The reversal of 20302244 is 44220302.

It can be written as a sum of positive squares in only one way, i.e., 12673600 + 7628644 = 3560^2 + 2762^2 .

It is a super-2 number, since 2×20302244² = 824362222871072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2537777 + ... + 2537784.

It is an arithmetic number, because the mean of its divisors is an integer number (5921489).

Almost surely, 2^20302244 is an apocalyptic number.

It is an amenable number.

20302244 is a deficient number, since it is larger than the sum of its proper divisors (15226690).

20302244 is a wasteful number, since it uses less digits than its factorization.

20302244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075565 (or 5075563 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20302244 is about 4505.8011496292. The cubic root of 20302244 is about 272.8022916994.

Adding to 20302244 its reverse (44220302), we get a palindrome (64522546).

The spelling of 20302244 in words is "twenty million, three hundred two thousand, two hundred forty-four".