20224273 has 2 divisors, whose sum is σ = 20224274. Its totient is φ = 20224272.

The previous prime is 20224261. The next prime is 20224289. The reversal of 20224273 is 37242202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19784704 + 439569 = 4448^2 + 663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20224273 is a prime.

It is not a weakly prime, because it can be changed into another prime (20221273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112136 + 10112137.

It is an arithmetic number, because the mean of its divisors is an integer number (10112137).

Almost surely, 2^20224273 is an apocalyptic number.

It is an amenable number.

20224273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224273 is an equidigital number, since it uses as much as digits as its factorization.

20224273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20224273 is about 4497.1405359406. The cubic root of 20224273 is about 272.4526102255.

Adding to 20224273 its reverse (37242202), we get a palindrome (57466475).

It can be divided in two parts, 202 and 24273, that multiplied together give a triangular number (4903146 = T₃₁₃₁).

The spelling of 20224273 in words is "twenty million, two hundred twenty-four thousand, two hundred seventy-three".