20242042442 has 8 divisors (see below), whose sum is σ = 30363742596. Its totient is φ = 10120794912.

The previous prime is 20242042363. The next prime is 20242042451. The reversal of 20242042442 is 24424024202.

It can be written as a sum of positive squares in 2 ways, for example, as 18953304241 + 1288738201 = 137671^2 + 35899^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40238 + ... + 205190.

Almost surely, 2^20242042442 is an apocalyptic number.

20242042442 is a deficient number, since it is larger than the sum of its proper divisors (10121700154).

20242042442 is a wasteful number, since it uses less digits than its factorization.

20242042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226312.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20242042442 its reverse (24424024202), we get a palindrome (44666066644).

The spelling of 20242042442 in words is "twenty billion, two hundred forty-two million, forty-two thousand, four hundred forty-two".