489518440 has 32 divisors (see below), whose sum is σ = 1103501160. Its totient is φ = 195436800.

The previous prime is 489518431. The next prime is 489518443. The reversal of 489518440 is 44815984.

It can be written as a sum of positive squares in 4 ways, for example, as 470976804 + 18541636 = 21702^2 + 4306^2 .

It is not an unprimeable number, because it can be changed into a prime (489518443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10330 + ... + 32950.

Almost surely, 2^489518440 is an apocalyptic number.

489518440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489518440 is an abundant number, since it is smaller than the sum of its proper divisors (613982720).

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

489518440 is a wasteful number, since it uses less digits than its factorization.

489518440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23173 (or 23169 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 489518440 is about 22125.0636157278. The cubic root of 489518440 is about 788.1151669306.

The spelling of 489518440 in words is "four hundred eighty-nine million, five hundred eighteen thousand, four hundred forty".