42322031 has 4 divisors (see below), whose sum is σ = 42717672. Its totient is φ = 41926392.

The previous prime is 42321997. The next prime is 42322067. The reversal of 42322031 is 13022324.

42322031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-42322031 is a prime.

It is a super-2 number, since 2×42322031² = 3582308615929922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197660 + ... + 197873.

It is an arithmetic number, because the mean of its divisors is an integer number (10679418).

Almost surely, 2^42322031 is an apocalyptic number.

42322031 is a deficient number, since it is larger than the sum of its proper divisors (395641).

42322031 is a wasteful number, since it uses less digits than its factorization.

42322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395640.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42322031 is about 6505.5384865513. The cubic root of 42322031 is about 348.4888069701.

Adding to 42322031 its reverse (13022324), we get a palindrome (55344355).

The spelling of 42322031 in words is "forty-two million, three hundred twenty-two thousand, thirty-one".