42422512 has 20 divisors (see below), whose sum is σ = 89666136. Its totient is φ = 19282880.

The previous prime is 42422503. The next prime is 42422519. The reversal of 42422512 is 21522424.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42422519) 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, 120343 + ... + 120694.

Almost surely, 2^42422512 is an apocalyptic number.

It is an amenable number.

42422512 is an abundant number, since it is smaller than the sum of its proper divisors (47243624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42422512 is a wasteful number, since it uses less digits than its factorization.

42422512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241056 (or 241050 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 42422512 is about 6513.2566355088. The cubic root of 42422512 is about 348.7643831292.

Adding to 42422512 its reverse (21522424), we get a palindrome (63944936).

The spelling of 42422512 in words is "forty-two million, four hundred twenty-two thousand, five hundred twelve".