13500304 has 20 divisors (see below), whose sum is σ = 26400220. Its totient is φ = 6687360.

The previous prime is 13500281. The next prime is 13500307. The reversal of 13500304 is 40300531.

It can be written as a sum of positive squares in 2 ways, for example, as 5992704 + 7507600 = 2448^2 + 2740^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (13500307) 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, 2127 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (1320011).

Almost surely, 2^13500304 is an apocalyptic number.

It is an amenable number.

13500304 is a deficient number, since it is larger than the sum of its proper divisors (12899916).

13500304 is a wasteful number, since it uses less digits than its factorization.

13500304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858 (or 7852 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13500304 is about 3674.2759831020. The cubic root of 13500304 is about 238.1119450778. Note that the first 3 decimals are identical.

Adding to 13500304 its reverse (40300531), we get a palindrome (53800835).

The spelling of 13500304 in words is "thirteen million, five hundred thousand, three hundred four".