284939433680 has 80 divisors (see below), whose sum is σ = 723532315968. Its totient is φ = 103496448000.

The previous prime is 284939433679. The next prime is 284939433683. The reversal of 284939433680 is 86334939482.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284939433683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591515 + ... + 959045.

Almost surely, 2^284939433680 is an apocalyptic number.

284939433680 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 284939433680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361766157984).

284939433680 is an abundant number, since it is smaller than the sum of its proper divisors (438592882288).

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

284939433680 is a wasteful number, since it uses less digits than its factorization.

284939433680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368436 (or 368430 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 59.

The spelling of 284939433680 in words is "two hundred eighty-four billion, nine hundred thirty-nine million, four hundred thirty-three thousand, six hundred eighty".