285474 has 24 divisors (see below), whose sum is σ = 664848. Its totient is φ = 81480.

The previous prime is 285473. The next prime is 285497. The reversal of 285474 is 474582.

It is a Curzon number.

It is a zygodrome in base 5.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285474.

It is not an unprimeable number, because it can be changed into a prime (285473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192 + ... + 779.

It is an arithmetic number, because the mean of its divisors is an integer number (27702).

2²⁸⁵⁴⁷⁴ is an apocalyptic number.

285474 is an abundant number, since it is smaller than the sum of its proper divisors (379374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285474 is a wasteful number, since it uses less digits than its factorization.

285474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 983 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 285474 is about 534.2976698433. The cubic root of 285474 is about 65.8449067228.

The spelling of 285474 in words is "two hundred eighty-five thousand, four hundred seventy-four".