284020239 has 4 divisors (see below), whose sum is σ = 378693656. Its totient is φ = 189346824.

The previous prime is 284020211. The next prime is 284020259. The reversal of 284020239 is 932020482.

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

It is not a de Polignac number, because 284020239 - 2⁷ = 284020111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284020259) 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, 47336704 + ... + 47336709.

It is an arithmetic number, because the mean of its divisors is an integer number (94673414).

Almost surely, 2^284020239 is an apocalyptic number.

284020239 is a deficient number, since it is larger than the sum of its proper divisors (94673417).

284020239 is an equidigital number, since it uses as much as digits as its factorization.

284020239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94673416.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 284020239 is about 16852.9000175044. The cubic root of 284020239 is about 657.3294590631.

The spelling of 284020239 in words is "two hundred eighty-four million, twenty thousand, two hundred thirty-nine".