442464233 has 2 divisors, whose sum is σ = 442464234. Its totient is φ = 442464232.

The previous prime is 442464221. The next prime is 442464259. The reversal of 442464233 is 332464244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 432307264 + 10156969 = 20792^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 442464233 - 2²² = 438269929 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442464233.

It is not a weakly prime, because it can be changed into another prime (442464203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221232116 + 221232117.

It is an arithmetic number, because the mean of its divisors is an integer number (221232117).

Almost surely, 2^442464233 is an apocalyptic number.

It is an amenable number.

442464233 is a deficient number, since it is larger than the sum of its proper divisors (1).

442464233 is an equidigital number, since it uses as much as digits as its factorization.

442464233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 32.

The square root of 442464233 is about 21034.8338001516. The cubic root of 442464233 is about 762.0077528070.

The spelling of 442464233 in words is "four hundred forty-two million, four hundred sixty-four thousand, two hundred thirty-three".