286530049 has 4 divisors (see below), whose sum is σ = 308570836. Its totient is φ = 264489264.

The previous prime is 286530043. The next prime is 286530061. The reversal of 286530049 is 940035682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62489025 + 224041024 = 7905^2 + 14968^2 .

It is not a de Polignac number, because 286530049 - 2⁷ = 286529921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286530043) 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, 11020374 + ... + 11020399.

It is an arithmetic number, because the mean of its divisors is an integer number (77142709).

Almost surely, 2^286530049 is an apocalyptic number.

It is an amenable number.

286530049 is a deficient number, since it is larger than the sum of its proper divisors (22040787).

286530049 is a wasteful number, since it uses less digits than its factorization.

286530049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22040786.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 286530049 is about 16927.1984982749. The cubic root of 286530049 is about 659.2599978197.

The spelling of 286530049 in words is "two hundred eighty-six million, five hundred thirty thousand, forty-nine".