284420339 has 4 divisors (see below), whose sum is σ = 325051824. Its totient is φ = 243788856.

The previous prime is 284420327. The next prime is 284420351. The reversal of 284420339 is 933024482.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (284420327) and next prime (284420351).

It is a cyclic number.

It is not a de Polignac number, because 284420339 - 2¹² = 284416243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284420299 and 284420308.

It is not an unprimeable number, because it can be changed into a prime (284420309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20315732 + ... + 20315745.

It is an arithmetic number, because the mean of its divisors is an integer number (81262956).

Almost surely, 2^284420339 is an apocalyptic number.

284420339 is a deficient number, since it is larger than the sum of its proper divisors (40631485).

284420339 is an equidigital number, since it uses as much as digits as its factorization.

284420339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40631484.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 284420339 is about 16864.7662005733. The cubic root of 284420339 is about 657.6379747743.

The spelling of 284420339 in words is "two hundred eighty-four million, four hundred twenty thousand, three hundred thirty-nine".