489387221800 has 48 divisors (see below), whose sum is σ = 1197710841600. Its totient is φ = 185451998400.

The previous prime is 489387221777. The next prime is 489387221809. The reversal of 489387221800 is 8122783984.

It is a happy number.

It is a super-2 number, since 2×489387221800² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (489387221809) 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 11 ways as a sum of consecutive naturals, for example, 64389256 + ... + 64396855.

It is an arithmetic number, because the mean of its divisors is an integer number (24952309200).

Almost surely, 2^489387221800 is an apocalyptic number.

489387221800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489387221800 is an abundant number, since it is smaller than the sum of its proper divisors (708323619800).

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

489387221800 is a wasteful number, since it uses less digits than its factorization.

489387221800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128786146 (or 128786137 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 489387221800 in words is "four hundred eighty-nine billion, three hundred eighty-seven million, two hundred twenty-one thousand, eight hundred".