42423122 has 24 divisors (see below), whose sum is σ = 74389104. Its totient is φ = 18091752.

The previous prime is 42423119. The next prime is 42423133. The reversal of 42423122 is 22132424.

It is a junction number, because it is equal to n+sod(n) for n = 42423094 and 42423103.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21293 + ... + 23199.

It is an arithmetic number, because the mean of its divisors is an integer number (3099546).

Almost surely, 2^42423122 is an apocalyptic number.

42423122 is a deficient number, since it is larger than the sum of its proper divisors (31965982).

42423122 is a wasteful number, since it uses less digits than its factorization.

42423122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2143 counting only the distinct ones).

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

The square root of 42423122 is about 6513.3034629134. The cubic root of 42423122 is about 348.7660547672.

Adding to 42423122 its reverse (22132424), we get a palindrome (64555546).

The spelling of 42423122 in words is "forty-two million, four hundred twenty-three thousand, one hundred twenty-two".