284905229 has 16 divisors (see below), whose sum is σ = 333864960. Its totient is φ = 238034160.

The previous prime is 284905189. The next prime is 284905259. The reversal of 284905229 is 922509482.

It is a de Polignac number, because none of the positive numbers 2^k-284905229 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 (284905259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273692 + ... + 274730.

It is an arithmetic number, because the mean of its divisors is an integer number (20866560).

Almost surely, 2^284905229 is an apocalyptic number.

It is an amenable number.

284905229 is a deficient number, since it is larger than the sum of its proper divisors (48959731).

284905229 is a wasteful number, since it uses less digits than its factorization.

284905229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 284905229 is about 16879.1359079782. The cubic root of 284905229 is about 658.0114842032.

The spelling of 284905229 in words is "two hundred eighty-four million, nine hundred five thousand, two hundred twenty-nine".