20204442042 has 64 divisors (see below), whose sum is σ = 42297552000. Its totient is φ = 6425968640.

The previous prime is 20204442001. The next prime is 20204442113. The reversal of 20204442042 is 24024440202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5856334 + ... + 5859782.

It is an arithmetic number, because the mean of its divisors is an integer number (660899250).

Almost surely, 2^20204442042 is an apocalyptic number.

20204442042 is an abundant number, since it is smaller than the sum of its proper divisors (22093109958).

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

20204442042 is a wasteful number, since it uses less digits than its factorization.

20204442042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20204442042 its reverse (24024440202), we get a palindrome (44228882244).

The spelling of 20204442042 in words is "twenty billion, two hundred four million, four hundred forty-two thousand, forty-two".