286406 has 8 divisors (see below), whose sum is σ = 452280. Its totient is φ = 135648.

The previous prime is 286397. The next prime is 286411. The reversal of 286406 is 604682.

286406 = T₄₆ + T₄₇ + ... + T₁₂₁.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 286406.

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, 3731 + ... + 3806.

It is an arithmetic number, because the mean of its divisors is an integer number (56535).

2²⁸⁶⁴⁰⁶ is an apocalyptic number.

286406 is a deficient number, since it is larger than the sum of its proper divisors (165874).

286406 is a wasteful number, since it uses less digits than its factorization.

286406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7558.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 286406 is about 535.1691321442. The cubic root of 286406 is about 65.9164845091.

The spelling of 286406 in words is "two hundred eighty-six thousand, four hundred six".