42322321 has 4 divisors (see below), whose sum is σ = 42356592. Its totient is φ = 42288052.

The previous prime is 42322289. The next prime is 42322331. The reversal of 42322321 is 12322324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42322321 - 2⁵ = 42322289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42322331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15211 + ... + 17776.

It is an arithmetic number, because the mean of its divisors is an integer number (10589148).

Almost surely, 2^42322321 is an apocalyptic number.

It is an amenable number.

42322321 is a deficient number, since it is larger than the sum of its proper divisors (34271).

42322321 is a wasteful number, since it uses less digits than its factorization.

42322321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34270.

The product of its digits is 576, while the sum is 19.

The square root of 42322321 is about 6505.5607752138. The cubic root of 42322321 is about 348.4896029427.

Adding to 42322321 its reverse (12322324), we get a palindrome (54644645).

The spelling of 42322321 in words is "forty-two million, three hundred twenty-two thousand, three hundred twenty-one".