402402403 has 8 divisors (see below), whose sum is σ = 433890800. Its totient is φ = 370990368.

The previous prime is 402402401. The next prime is 402402419. The reversal of 402402403 is 304204204.

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

It is a cyclic number.

It is not a de Polignac number, because 402402403 - 2¹ = 402402401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402402401) 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 7 ways as a sum of consecutive naturals, for example, 7893 + ... + 29446.

It is an arithmetic number, because the mean of its divisors is an integer number (54236350).

Almost surely, 2^402402403 is an apocalyptic number.

402402403 is a deficient number, since it is larger than the sum of its proper divisors (31488397).

402402403 is a wasteful number, since it uses less digits than its factorization.

402402403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38181.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 402402403 is about 20059.9701644843. The cubic root of 402402403 is about 738.2784444665.

Adding to 402402403 its reverse (304204204), we get a palindrome (706606607).

The spelling of 402402403 in words is "four hundred two million, four hundred two thousand, four hundred three".