284805830 has 16 divisors (see below), whose sum is σ = 515337984. Its totient is φ = 113325120.

The previous prime is 284805827. The next prime is 284805841. The reversal of 284805830 is 38508482.

It is a super-2 number, since 2×284805830² = 162228721603977800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72647 + ... + 76466.

It is an arithmetic number, because the mean of its divisors is an integer number (32208624).

Almost surely, 2^284805830 is an apocalyptic number.

284805830 is a deficient number, since it is larger than the sum of its proper divisors (230532154).

284805830 is a wasteful number, since it uses less digits than its factorization.

284805830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149311.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 284805830 is about 16876.1912172149. The cubic root of 284805830 is about 657.9349519805.

The spelling of 284805830 in words is "two hundred eighty-four million, eight hundred five thousand, eight hundred thirty".