442002343 has 2 divisors, whose sum is σ = 442002344. Its totient is φ = 442002342.

The previous prime is 442002331. The next prime is 442002359. The reversal of 442002343 is 343200244.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442002343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442002313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221001171 + 221001172.

It is an arithmetic number, because the mean of its divisors is an integer number (221001172).

Almost surely, 2^442002343 is an apocalyptic number.

442002343 is a deficient number, since it is larger than the sum of its proper divisors (1).

442002343 is an equidigital number, since it uses as much as digits as its factorization.

442002343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 442002343 is about 21023.8517641273. The cubic root of 442002343 is about 761.7425062795.

Adding to 442002343 its reverse (343200244), we get a palindrome (785202587).

The spelling of 442002343 in words is "four hundred forty-two million, two thousand, three hundred forty-three".