402886 has 8 divisors (see below), whose sum is σ = 659304. Its totient is φ = 183120.

The previous prime is 402881. The next prime is 402923. The reversal of 402886 is 688204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9135 + ... + 9178.

It is an arithmetic number, because the mean of its divisors is an integer number (82413).

2⁴⁰²⁸⁸⁶ is an apocalyptic number.

402886 is a deficient number, since it is larger than the sum of its proper divisors (256418).

402886 is a wasteful number, since it uses less digits than its factorization.

402886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18326.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 402886 is about 634.7330147393. The cubic root of 402886 is about 73.8574074173.

It can be divided in two parts, 4028 and 86, that added together give a palindrome (4114).

The spelling of 402886 in words is "four hundred two thousand, eight hundred eighty-six".