42321422 has 16 divisors (see below), whose sum is σ = 74580912. Its totient is φ = 17757120.

The previous prime is 42321413. The next prime is 42321427. The reversal of 42321422 is 22412324.

It is a super-2 number, since 2×42321422² = 3582205520204168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42321394 and 42321403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321427) 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 7 ways as a sum of consecutive naturals, for example, 73703 + ... + 74274.

It is an arithmetic number, because the mean of its divisors is an integer number (4661307).

Almost surely, 2^42321422 is an apocalyptic number.

42321422 is a deficient number, since it is larger than the sum of its proper divisors (32259490).

42321422 is a wasteful number, since it uses less digits than its factorization.

42321422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148003.

The product of its digits is 768, while the sum is 20.

The square root of 42321422 is about 6505.4916801115. The cubic root of 42321422 is about 348.4871354160.

Adding to 42321422 its reverse (22412324), we get a palindrome (64733746).

The spelling of 42321422 in words is "forty-two million, three hundred twenty-one thousand, four hundred twenty-two".