20220273 has 14 divisors (see below), whose sum is σ = 30317634. Its totient is φ = 13479696.

The previous prime is 20220271. The next prime is 20220283. The reversal of 20220273 is 37202202.

It can be written as a sum of positive squares in only one way, i.e., 19607184 + 613089 = 4428^2 + 783^2 .

It is not a de Polignac number, because 20220273 - 2¹ = 20220271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20220271) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 13140 + ... + 14597.

Almost surely, 2^20220273 is an apocalyptic number.

It is an amenable number.

20220273 is a deficient number, since it is larger than the sum of its proper divisors (10097361).

20220273 is an frugal number, since it uses more digits than its factorization.

20220273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755 (or 27740 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20220273 is about 4496.6957869084. The cubic root of 20220273 is about 272.4346469544.

Adding to 20220273 its reverse (37202202), we get a palindrome (57422475).

The spelling of 20220273 in words is "twenty million, two hundred twenty thousand, two hundred seventy-three".