42322543 has 4 divisors (see below), whose sum is σ = 42337008. Its totient is φ = 42308080.

The previous prime is 42322477. The next prime is 42322559. The reversal of 42322543 is 34522324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42322543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42322573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (10584252).

Almost surely, 2^42322543 is an apocalyptic number.

42322543 is a deficient number, since it is larger than the sum of its proper divisors (14465).

42322543 is a wasteful number, since it uses less digits than its factorization.

42322543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14464.

The product of its digits is 5760, while the sum is 25.

The square root of 42322543 is about 6505.5778375176. The cubic root of 42322543 is about 348.4902122709.

Adding to 42322543 its reverse (34522324), we get a palindrome (76844867).

The spelling of 42322543 in words is "forty-two million, three hundred twenty-two thousand, five hundred forty-three".