4042420403 has 12 divisors (see below), whose sum is σ = 4784716560. Its totient is φ = 3345446496.

The previous prime is 4042420397. The next prime is 4042420409. The reversal of 4042420403 is 3040242404.

4042420403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4042420397) and next prime (4042420409).

It is not a de Polignac number, because 4042420403 - 2⁴ = 4042420387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042420409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337448 + ... + 349221.

It is an arithmetic number, because the mean of its divisors is an integer number (398726380).

Almost surely, 2^4042420403 is an apocalyptic number.

4042420403 is a deficient number, since it is larger than the sum of its proper divisors (742296157).

4042420403 is an equidigital number, since it uses as much as digits as its factorization.

4042420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686734 (or 686705 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 4042420403 is about 63580.0314800174. The cubic root of 4042420403 is about 1592.9928471531.

Adding to 4042420403 its reverse (3040242404), we get a palindrome (7082662807).

The spelling of 4042420403 in words is "four billion, forty-two million, four hundred twenty thousand, four hundred three".