284899232640 has 256 divisors, whose sum is σ = 991526365440. Its totient is φ = 69006950400.

The previous prime is 284899232621. The next prime is 284899232641. The reversal of 284899232640 is 46232998482.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284899232641) 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, 27598680 + ... + 27609000.

It is an arithmetic number, because the mean of its divisors is an integer number (3873149865).

Almost surely, 2^284899232640 is an apocalyptic number.

284899232640 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 284899232640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495763182720).

284899232640 is an abundant number, since it is smaller than the sum of its proper divisors (706627132800).

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

284899232640 is a wasteful number, since it uses less digits than its factorization.

284899232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661 (or 11649 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 284899232640 in words is "two hundred eighty-four billion, eight hundred ninety-nine million, two hundred thirty-two thousand, six hundred forty".