489969144 has 48 divisors (see below), whose sum is σ = 1516572720. Its totient is φ = 139991040.

The previous prime is 489969101. The next prime is 489969163. The reversal of 489969144 is 441969984.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485577 + ... + 486584.

It is an arithmetic number, because the mean of its divisors is an integer number (31595265).

Almost surely, 2^489969144 is an apocalyptic number.

It is an amenable number.

489969144 is an abundant number, since it is smaller than the sum of its proper divisors (1026603576).

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

489969144 is a wasteful number, since it uses less digits than its factorization.

489969144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972180 (or 972173 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 489969144 is about 22135.2466442098. The cubic root of 489969144 is about 788.3569676276.

The spelling of 489969144 in words is "four hundred eighty-nine million, nine hundred sixty-nine thousand, one hundred forty-four".