442241633 has 2 divisors, whose sum is σ = 442241634. Its totient is φ = 442241632.

The previous prime is 442241603. The next prime is 442241693. The reversal of 442241633 is 336142244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433139344 + 9102289 = 20812^2 + 3017^2 .

It is a cyclic number.

It is not a de Polignac number, because 442241633 - 2¹⁰ = 442240609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442241596 and 442241605.

It is not a weakly prime, because it can be changed into another prime (442241603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221120816 + 221120817.

It is an arithmetic number, because the mean of its divisors is an integer number (221120817).

Almost surely, 2^442241633 is an apocalyptic number.

It is an amenable number.

442241633 is a deficient number, since it is larger than the sum of its proper divisors (1).

442241633 is an equidigital number, since it uses as much as digits as its factorization.

442241633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 29.

The square root of 442241633 is about 21029.5419113208. The cubic root of 442241633 is about 761.8799448274.

Adding to 442241633 its reverse (336142244), we get a palindrome (778383877).

The spelling of 442241633 in words is "four hundred forty-two million, two hundred forty-one thousand, six hundred thirty-three".