204442031440042 has 32 divisors (see below), whose sum is σ = 349230863093760. Its totient is φ = 88851154188720.

The previous prime is 204442031439941. The next prime is 204442031440099. The reversal of 204442031440042 is 240044130244402.

It is a super-2 number, since 2×204442031440042² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82149042 + ... + 84601117.

It is an arithmetic number, because the mean of its divisors is an integer number (10913464471680).

Almost surely, 2^{204442031440042} is an apocalyptic number.

204442031440042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204442031440042 is a deficient number, since it is larger than the sum of its proper divisors (144788831653718).

204442031440042 is a wasteful number, since it uses less digits than its factorization.

204442031440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166752618.

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 204442031440042 its reverse (240044130244402), we get a palindrome (444486161684444).

The spelling of 204442031440042 in words is "two hundred four trillion, four hundred forty-two billion, thirty-one million, four hundred forty thousand, forty-two".