284864460 has 24 divisors (see below), whose sum is σ = 797620656. Its totient is φ = 75963840.

The previous prime is 284864431. The next prime is 284864521. The reversal of 284864460 is 64468482.

284864460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×284864460² = 162295521142183200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2373811 + ... + 2373930.

It is an arithmetic number, because the mean of its divisors is an integer number (33234194).

Almost surely, 2^284864460 is an apocalyptic number.

284864460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284864460 is an abundant number, since it is smaller than the sum of its proper divisors (512756196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284864460 is a wasteful number, since it uses less digits than its factorization.

284864460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4747753 (or 4747751 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The square root of 284864460 is about 16877.9281903911. The cubic root of 284864460 is about 657.9800962805.

The spelling of 284864460 in words is "two hundred eighty-four million, eight hundred sixty-four thousand, four hundred sixty".