20229233 has 2 divisors, whose sum is σ = 20229234. Its totient is φ = 20229232.

The previous prime is 20229217. The next prime is 20229257. The reversal of 20229233 is 33292202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16096144 + 4133089 = 4012^2 + 2033^2 .

It is a cyclic number.

It is not a de Polignac number, because 20229233 - 2⁴ = 20229217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20229199 and 20229208.

It is not a weakly prime, because it can be changed into another prime (20222233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10114616 + 10114617.

It is an arithmetic number, because the mean of its divisors is an integer number (10114617).

Almost surely, 2^20229233 is an apocalyptic number.

It is an amenable number.

20229233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20229233 is an equidigital number, since it uses as much as digits as its factorization.

20229233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20229233 is about 4497.6919636631. The cubic root of 20229233 is about 272.4748813926.

The spelling of 20229233 in words is "twenty million, two hundred twenty-nine thousand, two hundred thirty-three".