489845740 has 24 divisors (see below), whose sum is σ = 1029383712. Its totient is φ = 195803520.

The previous prime is 489845717. The next prime is 489845747. The reversal of 489845740 is 47548984.

It is a happy number.

It is a super-2 number, since 2×489845740² = 479897697992295200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489845747) 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 7 ways as a sum of consecutive naturals, for example, 24520 + ... + 39760.

It is an arithmetic number, because the mean of its divisors is an integer number (42890988).

Almost surely, 2^489845740 is an apocalyptic number.

It is an amenable number.

489845740 is an abundant number, since it is smaller than the sum of its proper divisors (539537972).

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

489845740 is a wasteful number, since it uses less digits than its factorization.

489845740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16857 (or 16855 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 489845740 is about 22132.4589686731. The cubic root of 489845740 is about 788.2907766759.

The spelling of 489845740 in words is "four hundred eighty-nine million, eight hundred forty-five thousand, seven hundred forty".