505328420 has 24 divisors (see below), whose sum is σ = 1062198144. Its totient is φ = 201939296.

The previous prime is 505328419. The next prime is 505328431. The reversal of 505328420 is 24823505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10607 + ... + 33513.

It is an arithmetic number, because the mean of its divisors is an integer number (44258256).

Almost surely, 2^505328420 is an apocalyptic number.

It is an amenable number.

505328420 is an abundant number, since it is smaller than the sum of its proper divisors (556869724).

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

505328420 is a wasteful number, since it uses less digits than its factorization.

505328420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24019 (or 24017 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 505328420 is about 22479.5111156804. The cubic root of 505328420 is about 796.5100159033.

The spelling of 505328420 in words is "five hundred five million, three hundred twenty-eight thousand, four hundred twenty".