284448885 has 64 divisors (see below), whose sum is σ = 532611072. Its totient is φ = 126959616.

The previous prime is 284448869. The next prime is 284448887. The reversal of 284448885 is 588844482.

It is not a de Polignac number, because 284448885 - 2⁴ = 284448869 is a prime.

It is a super-2 number, since 2×284448885² = 161822336355486450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284448887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1106677 + ... + 1106933.

It is an arithmetic number, because the mean of its divisors is an integer number (8322048).

Almost surely, 2^284448885 is an apocalyptic number.

It is an amenable number.

284448885 is a deficient number, since it is larger than the sum of its proper divisors (248162187).

284448885 is a wasteful number, since it uses less digits than its factorization.

284448885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its digits is 2621440, while the sum is 51.

The square root of 284448885 is about 16865.6124999954. The cubic root of 284448885 is about 657.6599754344.

The spelling of 284448885 in words is "two hundred eighty-four million, four hundred forty-eight thousand, eight hundred eighty-five".