402002 has 16 divisors (see below), whose sum is σ = 648000. Its totient is φ = 186480.

The previous prime is 401993. The next prime is 402023. The reversal of 402002 is 200204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624 + ... + 2772.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2⁴⁰²⁰⁰² is an apocalyptic number.

402002 is a deficient number, since it is larger than the sum of its proper divisors (245998).

402002 is a wasteful number, since it uses less digits than its factorization.

402002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 402002 is about 634.0362765647. The cubic root of 402002 is about 73.8033493142.

Adding to 402002 its reverse (200204), we get a palindrome (602206).

The spelling of 402002 in words is "four hundred two thousand, two", and thus it is an iban number.