284238648 has 24 divisors (see below), whose sum is σ = 769813200. Its totient is φ = 94746192.

The previous prime is 284238641. The next prime is 284238649. The reversal of 284238648 is 846832482.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284238641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1973808 + ... + 1973951.

It is an arithmetic number, because the mean of its divisors is an integer number (32075550).

Almost surely, 2^284238648 is an apocalyptic number.

It is an amenable number.

284238648 is an abundant number, since it is smaller than the sum of its proper divisors (485574552).

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

284238648 is a wasteful number, since it uses less digits than its factorization.

284238648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947771 (or 3947764 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The square root of 284238648 is about 16859.3786362369. The cubic root of 284238648 is about 657.4979093651.

The spelling of 284238648 in words is "two hundred eighty-four million, two hundred thirty-eight thousand, six hundred forty-eight".