285266 has 8 divisors (see below), whose sum is σ = 450480. Its totient is φ = 135108.

The previous prime is 285251. The next prime is 285281. The reversal of 285266 is 662582.

It is an interprime number because it is at equal distance from previous prime (285251) and next prime (285281).

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

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, 3716 + ... + 3791.

It is an arithmetic number, because the mean of its divisors is an integer number (56310).

2²⁸⁵²⁶⁶ is an apocalyptic number.

285266 is a deficient number, since it is larger than the sum of its proper divisors (165214).

285266 is a wasteful number, since it uses less digits than its factorization.

285266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528.

The product of its digits is 5760, while the sum is 29.

The square root of 285266 is about 534.1029863238. The cubic root of 285266 is about 65.8289110241.

The spelling of 285266 in words is "two hundred eighty-five thousand, two hundred sixty-six".