402030430403 has 16 divisors (see below), whose sum is σ = 485721400320. Its totient is φ = 325059656256.

The previous prime is 402030430397. The next prime is 402030430423. The reversal of 402030430403 is 304034030204.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 402030430403 - 2⁴ = 402030430387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402030430423) 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 15 ways as a sum of consecutive naturals, for example, 6455675 + ... + 6517652.

It is an arithmetic number, because the mean of its divisors is an integer number (30357587520).

Almost surely, 2^402030430403 is an apocalyptic number.

402030430403 is a deficient number, since it is larger than the sum of its proper divisors (83690969917).

402030430403 is a wasteful number, since it uses less digits than its factorization.

402030430403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973586.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 402030430403 its reverse (304034030204), we get a palindrome (706064460607).

The spelling of 402030430403 in words is "four hundred two billion, thirty million, four hundred thirty thousand, four hundred three".