442343233 has 2 divisors, whose sum is σ = 442343234. Its totient is φ = 442343232.

The previous prime is 442343227. The next prime is 442343249. The reversal of 442343233 is 332343244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329495104 + 112848129 = 18152^2 + 10623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442343233 is a prime.

It is not a weakly prime, because it can be changed into another prime (442343533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221171616 + 221171617.

It is an arithmetic number, because the mean of its divisors is an integer number (221171617).

Almost surely, 2^442343233 is an apocalyptic number.

It is an amenable number.

442343233 is a deficient number, since it is larger than the sum of its proper divisors (1).

442343233 is an equidigital number, since it uses as much as digits as its factorization.

442343233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 28.

The square root of 442343233 is about 21031.9574219805. The cubic root of 442343233 is about 761.9382847857.

Adding to 442343233 its reverse (332343244), we get a palindrome (774686477).

The spelling of 442343233 in words is "four hundred forty-two million, three hundred forty-three thousand, two hundred thirty-three".