4042420442404 has 6 divisors (see below), whose sum is σ = 7074235774214. Its totient is φ = 2021210221200.

The previous prime is 4042420442339. The next prime is 4042420442429. The reversal of 4042420442404 is 4042440242404.

It can be written as a sum of positive squares in only one way, i.e., 2706551425600 + 1335869016804 = 1645160^2 + 1155798^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4042420442404.

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, 505302555297 + ... + 505302555304.

Almost surely, 2^{4042420442404} is an apocalyptic number.

It is an amenable number.

4042420442404 is a deficient number, since it is larger than the sum of its proper divisors (3031815331810).

4042420442404 is a wasteful number, since it uses less digits than its factorization.

4042420442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010605110605 (or 1010605110603 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 4042420442404 its reverse (4042440242404), we get a palindrome (8084860684808).

The spelling of 4042420442404 in words is "four trillion, forty-two billion, four hundred twenty million, four hundred forty-two thousand, four hundred four".