284631912 has 48 divisors (see below), whose sum is σ = 775172580. Its totient is φ = 94348800.

The previous prime is 284631911. The next prime is 284631931. The reversal of 284631912 is 219136482.

284631912 is a `hidden beast` number, since 2 + 8 + 4 + 631 + 9 + 12 = 666.

284631912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158608836 + 126023076 = 12594^2 + 11226^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (284631911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2112 + ... + 23952.

Almost surely, 2^284631912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284631912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387586290).

284631912 is an abundant number, since it is smaller than the sum of its proper divisors (490540668).

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

284631912 is a wasteful number, since it uses less digits than its factorization.

284631912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22034 (or 22027 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 284631912 is about 16871.0376681460. The cubic root of 284631912 is about 657.8010010350.

The spelling of 284631912 in words is "two hundred eighty-four million, six hundred thirty-one thousand, nine hundred twelve".