2042420042 has 16 divisors (see below), whose sum is σ = 3300175872. Its totient is φ = 942403440.

The previous prime is 2042420041. The next prime is 2042420057. The reversal of 2042420042 is 2400242402.

It is a junction number, because it is equal to n+sod(n) for n = 2042419996 and 2042420023.

It is not an unprimeable number, because it can be changed into a prime (2042420041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 118583 + ... + 134709.

It is an arithmetic number, because the mean of its divisors is an integer number (206260992).

Almost surely, 2^2042420042 is an apocalyptic number.

2042420042 is a deficient number, since it is larger than the sum of its proper divisors (1257755830).

2042420042 is a wasteful number, since it uses less digits than its factorization.

2042420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21013.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2042420042 is about 45193.1415371846. The cubic root of 2042420042 is about 1268.7664551337.

Adding to 2042420042 its reverse (2400242402), we get a palindrome (4442662444).

The spelling of 2042420042 in words is "two billion, forty-two million, four hundred twenty thousand, forty-two".