5172320 has 24 divisors (see below), whose sum is σ = 12219984. Its totient is φ = 2068864.

The previous prime is 5172317. The next prime is 5172337. The reversal of 5172320 is 232715.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5172292 and 5172301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16004 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (509166).

Almost surely, 2^5172320 is an apocalyptic number.

It is an amenable number.

5172320 is an abundant number, since it is smaller than the sum of its proper divisors (7047664).

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

5172320 is a wasteful number, since it uses less digits than its factorization.

5172320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32342 (or 32334 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 5172320 is about 2274.2735103764. The cubic root of 5172320 is about 172.9398701786.

The spelling of 5172320 in words is "five million, one hundred seventy-two thousand, three hundred twenty".