285364 has 6 divisors (see below), whose sum is σ = 499394. Its totient is φ = 142680.

The previous prime is 285343. The next prime is 285377. The reversal of 285364 is 463582.

It can be written as a sum of positive squares in only one way, i.e., 195364 + 90000 = 442^2 + 300^2 .

It is a super-2 number, since 2×285364² = 162865224992, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 8 + 3⁵ + 5⁵ + 6⁷ + 4 .

It is a congruent number.

It is an unprimeable number.

285364 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35667 + ... + 35674.

2²⁸⁵³⁶⁴ is an apocalyptic number.

It is an amenable number.

285364 is a deficient number, since it is larger than the sum of its proper divisors (214030).

285364 is a wasteful number, since it uses less digits than its factorization.

285364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71345 (or 71343 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 285364 is about 534.1947210522. The cubic root of 285364 is about 65.8364484274.

It can be divided in two parts, 285 and 364, that multiplied together give a triangular number (103740 = T₄₅₅).

The spelling of 285364 in words is "two hundred eighty-five thousand, three hundred sixty-four".