285466 has 4 divisors (see below), whose sum is σ = 428202. Its totient is φ = 142732.

The previous prime is 285463. The next prime is 285469. The reversal of 285466 is 664582.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (285463) and next prime (285469).

It can be written as a sum of positive squares in only one way, i.e., 279841 + 5625 = 529^2 + 75^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (285463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71365 + ... + 71368.

2²⁸⁵⁴⁶⁶ is an apocalyptic number.

285466 is a deficient number, since it is larger than the sum of its proper divisors (142736).

285466 is a wasteful number, since it uses less digits than its factorization.

285466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142735.

The product of its digits is 11520, while the sum is 31.

The square root of 285466 is about 534.2901833274. The cubic root of 285466 is about 65.8442916473.

The spelling of 285466 in words is "two hundred eighty-five thousand, four hundred sixty-six".