4200042404042 has 4 divisors (see below), whose sum is σ = 6300063606066. Its totient is φ = 2100021202020.

The previous prime is 4200042404023. The next prime is 4200042404099. The reversal of 4200042404042 is 2404042400024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4149813077881 + 50229326161 = 2037109^2 + 224119^2 .

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 as a sum of consecutive naturals, namely, 1050010601009 + ... + 1050010601012.

Almost surely, 2^{4200042404042} is an apocalyptic number.

4200042404042 is a deficient number, since it is larger than the sum of its proper divisors (2100021202024).

4200042404042 is a wasteful number, since it uses less digits than its factorization.

4200042404042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100021202023.

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

Adding to 4200042404042 its reverse (2404042400024), we get a palindrome (6604084804066).

The spelling of 4200042404042 in words is "four trillion, two hundred billion, forty-two million, four hundred four thousand, forty-two".