479989530 has 128 divisors (see below), whose sum is σ = 1372377600. Its totient is φ = 119066112.

The previous prime is 479989519. The next prime is 479989537. The reversal of 479989530 is 35989974.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (479989537) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 228726 + ... + 230814.

It is an arithmetic number, because the mean of its divisors is an integer number (10721700).

Almost surely, 2^479989530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479989530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686188800).

479989530 is an abundant number, since it is smaller than the sum of its proper divisors (892388070).

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

479989530 is a wasteful number, since it uses less digits than its factorization.

479989530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 479989530 is about 21908.6633549379. The cubic root of 479989530 is about 782.9678353224.

The spelling of 479989530 in words is "four hundred seventy-nine million, nine hundred eighty-nine thousand, five hundred thirty".