284442729860 has 12 divisors (see below), whose sum is σ = 597329732748. Its totient is φ = 113777091936.

The previous prime is 284442729859. The next prime is 284442729863. The reversal of 284442729860 is 68927244482.

It can be written as a sum of positive squares in 2 ways, for example, as 160014400324 + 124428329536 = 400018^2 + 352744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 284442729796 and 284442729805.

It is not an unprimeable number, because it can be changed into a prime (284442729863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7111068227 + ... + 7111068266.

It is an arithmetic number, because the mean of its divisors is an integer number (49777477729).

Almost surely, 2^284442729860 is an apocalyptic number.

284442729860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284442729860 is an abundant number, since it is smaller than the sum of its proper divisors (312887002888).

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

284442729860 is a wasteful number, since it uses less digits than its factorization.

284442729860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14222136502 (or 14222136500 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 284442729860 in words is "two hundred eighty-four billion, four hundred forty-two million, seven hundred twenty-nine thousand, eight hundred sixty".