285464 has 16 divisors (see below), whose sum is σ = 567000. Its totient is φ = 134272.

The previous prime is 285463. The next prime is 285469. The reversal of 285464 is 464582.

It is an Ulam 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 285464.

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 in 3 ways as a sum of consecutive naturals, for example, 914 + ... + 1185.

2²⁸⁵⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

285464 is a deficient number, since it is larger than the sum of its proper divisors (281536).

285464 is a wasteful number, since it uses less digits than its factorization.

285464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 2118 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 285464 is about 534.2883116820. The cubic root of 285464 is about 65.8441378767.

The spelling of 285464 in words is "two hundred eighty-five thousand, four hundred sixty-four".