284420328 has 32 divisors (see below), whose sum is σ = 712865760. Its totient is φ = 94564800.

The previous prime is 284420327. The next prime is 284420351. The reversal of 284420328 is 823024482.

It is not an unprimeable number, because it can be changed into a prime (284420327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5398 + ... + 24453.

It is an arithmetic number, because the mean of its divisors is an integer number (22277055).

Almost surely, 2^284420328 is an apocalyptic number.

It is an amenable number.

284420328 is an abundant number, since it is smaller than the sum of its proper divisors (428445432).

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

284420328 is a wasteful number, since it uses less digits than its factorization.

284420328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30257 (or 30253 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 284420328 is about 16864.7658744496. The cubic root of 284420328 is about 657.6379662962.

The spelling of 284420328 in words is "two hundred eighty-four million, four hundred twenty thousand, three hundred twenty-eight".