285412 has 6 divisors (see below), whose sum is σ = 499478. Its totient is φ = 142704.

The previous prime is 285377. The next prime is 285421. The reversal of 285412 is 214582.

285412 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 285156 + 256 = 534^2 + 16^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35673 + ... + 35680.

2²⁸⁵⁴¹² is an apocalyptic number.

It is an amenable number.

285412 is a deficient number, since it is larger than the sum of its proper divisors (214066).

285412 is a wasteful number, since it uses less digits than its factorization.

285412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71357 (or 71355 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 285412 is about 534.2396466007. The cubic root of 285412 is about 65.8401395872.

Subtracting from 285412 its sum of digits (22), we obtain a triangular number (285390 = T₇₅₅).

Adding to 285412 its reverse (214582), we get a palindrome (499994).

The spelling of 285412 in words is "two hundred eighty-five thousand, four hundred twelve".