284905330 has 8 divisors (see below), whose sum is σ = 512829612. Its totient is φ = 113962128.

The previous prime is 284905307. The next prime is 284905333. The reversal of 284905330 is 33509482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 284023609 + 881721 = 16853^2 + 939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (284905333) 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, 14245257 + ... + 14245276.

Almost surely, 2^284905330 is an apocalyptic number.

284905330 is a deficient number, since it is larger than the sum of its proper divisors (227924282).

284905330 is a wasteful number, since it uses less digits than its factorization.

284905330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28490540.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 284905330 is about 16879.1388998373. The cubic root of 284905330 is about 658.0115619591.

The spelling of 284905330 in words is "two hundred eighty-four million, nine hundred five thousand, three hundred thirty".