284534740 has 96 divisors (see below), whose sum is σ = 718792704. Its totient is φ = 92551680.

The previous prime is 284534717. The next prime is 284534753. The reversal of 284534740 is 47435482.

It is a self number, because there is not a number n which added to its sum of digits gives 284534740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229402 + ... + 230638.

It is an arithmetic number, because the mean of its divisors is an integer number (7487424).

Almost surely, 2^284534740 is an apocalyptic number.

284534740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284534740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359396352).

284534740 is an abundant number, since it is smaller than the sum of its proper divisors (434257964).

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

284534740 is a wasteful number, since it uses less digits than its factorization.

284534740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 284534740 is about 16868.1575757402. The cubic root of 284534740 is about 657.7261357891.

The spelling of 284534740 in words is "two hundred eighty-four million, five hundred thirty-four thousand, seven hundred forty".