284420243 has 2 divisors, whose sum is σ = 284420244. Its totient is φ = 284420242.

The previous prime is 284420233. The next prime is 284420261. The reversal of 284420243 is 342024482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 284420243 - 2²⁰ = 283371667 is a prime.

It is not a weakly prime, because it can be changed into another prime (284420233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142210121 + 142210122.

It is an arithmetic number, because the mean of its divisors is an integer number (142210122).

Almost surely, 2^284420243 is an apocalyptic number.

284420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

284420243 is an equidigital number, since it uses as much as digits as its factorization.

284420243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 284420243 is about 16864.7633544026. The cubic root of 284420243 is about 657.6379007837.

The spelling of 284420243 in words is "two hundred eighty-four million, four hundred twenty thousand, two hundred forty-three".