442212833 has 2 divisors, whose sum is σ = 442212834. Its totient is φ = 442212832.

The previous prime is 442212803. The next prime is 442212853. The reversal of 442212833 is 338212244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440286289 + 1926544 = 20983^2 + 1388^2 .

It is a cyclic number.

It is not a de Polignac number, because 442212833 - 2⁶ = 442212769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 442212796 and 442212805.

It is not a weakly prime, because it can be changed into another prime (442212803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221106416 + 221106417.

It is an arithmetic number, because the mean of its divisors is an integer number (221106417).

Almost surely, 2^442212833 is an apocalyptic number.

It is an amenable number.

442212833 is a deficient number, since it is larger than the sum of its proper divisors (1).

442212833 is an equidigital number, since it uses as much as digits as its factorization.

442212833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 29.

The square root of 442212833 is about 21028.8571491653. The cubic root of 442212833 is about 761.8634058910.

The spelling of 442212833 in words is "four hundred forty-two million, two hundred twelve thousand, eight hundred thirty-three".