402286 has 8 divisors (see below), whose sum is σ = 612144. Its totient is φ = 198240.

The previous prime is 402277. The next prime is 402299. The reversal of 402286 is 682204.

402286 is nontrivially palindromic in base 14.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (76518).

2⁴⁰²²⁸⁶ is an apocalyptic number.

402286 is a deficient number, since it is larger than the sum of its proper divisors (209858).

402286 is a wasteful number, since it uses less digits than its factorization.

402286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 402286 is about 634.2601989720. The cubic root of 402286 is about 73.8207250298.

The spelling of 402286 in words is "four hundred two thousand, two hundred eighty-six".