509489880 has 64 divisors (see below), whose sum is σ = 1542036960. Its totient is φ = 134658048.

The previous prime is 509489879. The next prime is 509489891. The reversal of 509489880 is 88984905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5227 + ... + 32346.

Almost surely, 2^509489880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 509489880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771018480).

509489880 is an abundant number, since it is smaller than the sum of its proper divisors (1032547080).

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

509489880 is a wasteful number, since it uses less digits than its factorization.

509489880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37700 (or 37696 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 509489880 is about 22571.8825089978. The cubic root of 509489880 is about 798.6905035266.

The spelling of 509489880 in words is "five hundred nine million, four hundred eighty-nine thousand, eight hundred eighty".