42222424 has 16 divisors (see below), whose sum is σ = 83824200. Its totient is φ = 19869312.

The previous prime is 42222421. The next prime is 42222437. The reversal of 42222424 is 42422224.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 42222395 and 42222404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155094 + ... + 155365.

Almost surely, 2^42222424 is an apocalyptic number.

It is an amenable number.

42222424 is a deficient number, since it is larger than the sum of its proper divisors (41601776).

42222424 is a wasteful number, since it uses less digits than its factorization.

42222424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310482 (or 310478 counting only the distinct ones).

The product of its digits is 2048, while the sum is 22.

The square root of 42222424 is about 6497.8784229932. The cubic root of 42222424 is about 348.2151969730.

Adding to 42222424 its reverse (42422224), we get a palindrome (84644648).

The spelling of 42222424 in words is "forty-two million, two hundred twenty-two thousand, four hundred twenty-four".