489906240 has 56 divisors (see below), whose sum is σ = 1555455360. Its totient is φ = 130641408.

The previous prime is 489906229. The next prime is 489906269. The reversal of 489906240 is 42609984.

It is a junction number, because it is equal to n+sod(n) for n = 489906192 and 489906201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254200 + ... + 256119.

Almost surely, 2^489906240 is an apocalyptic number.

489906240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489906240 is an abundant number, since it is smaller than the sum of its proper divisors (1065549120).

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

489906240 is a wasteful number, since it uses less digits than its factorization.

489906240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510339 (or 510329 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 489906240 is about 22133.8256973348. The cubic root of 489906240 is about 788.3232288166.

The spelling of 489906240 in words is "four hundred eighty-nine million, nine hundred six thousand, two hundred forty".