2042404440402 has 8 divisors (see below), whose sum is σ = 4084808880816. Its totient is φ = 680801480132.

The previous prime is 2042404440389. The next prime is 2042404440451. The reversal of 2042404440402 is 2040444042402.

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

2042404440402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042404440402.

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 in 3 ways as a sum of consecutive naturals, for example, 170200370028 + ... + 170200370039.

It is an arithmetic number, because the mean of its divisors is an integer number (510601110102).

Almost surely, 2^{2042404440402} is an apocalyptic number.

2042404440402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2042404440402 is a wasteful number, since it uses less digits than its factorization.

2042404440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340400740072.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 2042404440402 its reverse (2040444042402), we get a palindrome (4082848482804).

The spelling of 2042404440402 in words is "two trillion, forty-two billion, four hundred four million, four hundred forty thousand, four hundred two".