442034543 has 2 divisors, whose sum is σ = 442034544. Its totient is φ = 442034542.

The previous prime is 442034533. The next prime is 442034557. The reversal of 442034543 is 345430244.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442034543 is a prime.

It is a super-3 number, since 3×442034543³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442034503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221017271 + 221017272.

It is an arithmetic number, because the mean of its divisors is an integer number (221017272).

Almost surely, 2^442034543 is an apocalyptic number.

442034543 is a deficient number, since it is larger than the sum of its proper divisors (1).

442034543 is an equidigital number, since it uses as much as digits as its factorization.

442034543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 442034543 is about 21024.6175470566. The cubic root of 442034543 is about 761.7610035518.

Adding to 442034543 its reverse (345430244), we get a palindrome (787464787).

The spelling of 442034543 in words is "four hundred forty-two million, thirty-four thousand, five hundred forty-three".