445220033 has 2 divisors, whose sum is σ = 445220034. Its totient is φ = 445220032.

The previous prime is 445219991. The next prime is 445220059. The reversal of 445220033 is 330022544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262213249 + 183006784 = 16193^2 + 13528^2 .

It is a cyclic number.

It is not a de Polignac number, because 445220033 - 2⁶ = 445219969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445219990 and 445220008.

It is not a weakly prime, because it can be changed into another prime (445220533) 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 as a sum of consecutive naturals, namely, 222610016 + 222610017.

It is an arithmetic number, because the mean of its divisors is an integer number (222610017).

Almost surely, 2^445220033 is an apocalyptic number.

It is an amenable number.

445220033 is a deficient number, since it is larger than the sum of its proper divisors (1).

445220033 is an equidigital number, since it uses as much as digits as its factorization.

445220033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 445220033 is about 21100.2377474757. The cubic root of 445220033 is about 763.5864840311.

Adding to 445220033 its reverse (330022544), we get a palindrome (775242577).

The spelling of 445220033 in words is "four hundred forty-five million, two hundred twenty thousand, thirty-three".