442002163 has 2 divisors, whose sum is σ = 442002164. Its totient is φ = 442002162.

The previous prime is 442002161. The next prime is 442002269. The reversal of 442002163 is 361200244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442002163 - 2¹ = 442002161 is a prime.

Together with 442002161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (442002161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221001081 + 221001082.

It is an arithmetic number, because the mean of its divisors is an integer number (221001082).

Almost surely, 2^442002163 is an apocalyptic number.

442002163 is a deficient number, since it is larger than the sum of its proper divisors (1).

442002163 is an equidigital number, since it uses as much as digits as its factorization.

442002163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 442002163 is about 21023.8474832748. The cubic root of 442002163 is about 761.7424028760.

The spelling of 442002163 in words is "four hundred forty-two million, two thousand, one hundred sixty-three".