284428914 has 64 divisors (see below), whose sum is σ = 718295040. Its totient is φ = 72933120.

The previous prime is 284428901. The next prime is 284428919. The reversal of 284428914 is 419824482.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (284428919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32602 + ... + 40394.

It is an arithmetic number, because the mean of its divisors is an integer number (11223360).

Almost surely, 2^284428914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284428914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359147520).

284428914 is an abundant number, since it is smaller than the sum of its proper divisors (433866126).

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

284428914 is a wasteful number, since it uses less digits than its factorization.

284428914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895.

The product of its digits is 147456, while the sum is 42.

The square root of 284428914 is about 16865.0204269073. The cubic root of 284428914 is about 657.6445837589.

The spelling of 284428914 in words is "two hundred eighty-four million, four hundred twenty-eight thousand, nine hundred fourteen".