15320 has 16 divisors (see below), whose sum is σ = 34560. Its totient is φ = 6112.

The previous prime is 15319. The next prime is 15329. The reversal of 15320 is 2351.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 15320.

It is not an unprimeable number, because it can be changed into a prime (15329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152 + ... + 231.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2¹⁵³²⁰ is an apocalyptic number.

15320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15320 is an abundant number, since it is smaller than the sum of its proper divisors (19240).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17280).

15320 is a wasteful number, since it uses less digits than its factorization.

15320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 15320 is about 123.7739875741. The cubic root of 15320 is about 24.8362632861.

Adding to 15320 its reverse (2351), we get a palindrome (17671).

The spelling of 15320 in words is "fifteen thousand, three hundred twenty".