286320241 has 3 divisors (see below), whose sum is σ = 286337163. Its totient is φ = 286303320.

The previous prime is 286320217. The next prime is 286320271. The reversal of 286320241 is 142023682.

The square root of 286320241 is 16921.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 205320241 + 81000000 = 14329^2 + 9000^2 .

It is not a de Polignac number, because 286320241 - 2¹⁵ = 286287473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286320271) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8461 + ... + 25381.

It is an arithmetic number, because the mean of its divisors is an integer number (95445721).

Almost surely, 2^286320241 is an apocalyptic number.

286320241 is the 16921-st square number.

286320241 is the 8461-st centered octagonal number.

It is an amenable number.

286320241 is a deficient number, since it is larger than the sum of its proper divisors (16922).

286320241 is an frugal number, since it uses more digits than its factorization.

286320241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33842 (or 16921 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The cubic root of 286320241 is about 659.0990469336.

It can be divided in two parts, 2863 and 20241, that added together give a square (23104 = 152²).

The spelling of 286320241 in words is "two hundred eighty-six million, three hundred twenty thousand, two hundred forty-one".