20224240042 has 8 divisors (see below), whose sum is σ = 30338122500. Its totient is φ = 10111532544.

The previous prime is 20224240031. The next prime is 20224240051. The reversal of 20224240042 is 24004242202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20197810161 + 26429881 = 142119^2 + 5141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20224239995 and 20224240022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249367 + ... + 320362.

Almost surely, 2^20224240042 is an apocalyptic number.

20224240042 is a deficient number, since it is larger than the sum of its proper divisors (10113882458).

20224240042 is a wasteful number, since it uses less digits than its factorization.

20224240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587480.

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

Adding to 20224240042 its reverse (24004242202), we get a palindrome (44228482244).

The spelling of 20224240042 in words is "twenty billion, two hundred twenty-four million, two hundred forty thousand, forty-two".