509288880 has 160 divisors (see below), whose sum is σ = 1641769920. Its totient is φ = 130498560.

The previous prime is 509288827. The next prime is 509288887. The reversal of 509288880 is 88882905.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (509288887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 717966 + ... + 718674.

It is an arithmetic number, because the mean of its divisors is an integer number (10261062).

Almost surely, 2^509288880 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 509288880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820884960).

509288880 is an abundant number, since it is smaller than the sum of its proper divisors (1132481040).

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

509288880 is a wasteful number, since it uses less digits than its factorization.

509288880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 48.

The square root of 509288880 is about 22567.4296276736. The cubic root of 509288880 is about 798.5854586485.

The spelling of 509288880 in words is "five hundred nine million, two hundred eighty-eight thousand, eight hundred eighty".