402402103 has 4 divisors (see below), whose sum is σ = 415382848. Its totient is φ = 389421360.

The previous prime is 402402073. The next prime is 402402107. The reversal of 402402103 is 301204204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402402103 - 2⁵ = 402402071 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 (402402107) 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 3 ways as a sum of consecutive naturals, for example, 6490326 + ... + 6490387.

It is an arithmetic number, because the mean of its divisors is an integer number (103845712).

Almost surely, 2^402402103 is an apocalyptic number.

402402103 is a deficient number, since it is larger than the sum of its proper divisors (12980745).

402402103 is a wasteful number, since it uses less digits than its factorization.

402402103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12980744.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 402402103 is about 20059.9626869045. The cubic root of 402402103 is about 738.2782609988.

Adding to 402402103 its reverse (301204204), we get a palindrome (703606307).

The spelling of 402402103 in words is "four hundred two million, four hundred two thousand, one hundred three".