15404 has 6 divisors (see below), whose sum is σ = 26964. Its totient is φ = 7700.

The previous prime is 15401. The next prime is 15413. The reversal of 15404 is 40451.

15404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922 + ... + 1929.

It is an arithmetic number, because the mean of its divisors is an integer number (4494).

2¹⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

15404 is a deficient number, since it is larger than the sum of its proper divisors (11560).

15404 is a wasteful number, since it uses less digits than its factorization.

15404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 15404 is about 124.1128518728. The cubic root of 15404 is about 24.8815732231.

Adding to 15404 its reverse (40451), we get a palindrome (55855).

The spelling of 15404 in words is "fifteen thousand, four hundred four".