489245040 has 120 divisors (see below), whose sum is σ = 1739741328. Its totient is φ = 122787840.

The previous prime is 489245039. The next prime is 489245047. The reversal of 489245040 is 40542984.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 489244986 and 489245004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489245047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7746 + ... + 32225.

Almost surely, 2^489245040 is an apocalyptic number.

489245040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489245040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869870664).

489245040 is an abundant number, since it is smaller than the sum of its proper divisors (1250496288).

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

489245040 is a wasteful number, since it uses less digits than its factorization.

489245040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007 (or 39998 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 489245040 is about 22118.8842394909. The cubic root of 489245040 is about 787.9684167128.

The spelling of 489245040 in words is "four hundred eighty-nine million, two hundred forty-five thousand, forty".