13502404 has 6 divisors (see below), whose sum is σ = 23629214. Its totient is φ = 6751200.

The previous prime is 13502393. The next prime is 13502413. The reversal of 13502404 is 40420531.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 3069504 = 3230^2 + 1752^2 .

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 as a sum of consecutive naturals, namely, 1687797 + ... + 1687804.

Almost surely, 2^13502404 is an apocalyptic number.

It is an amenable number.

13502404 is a deficient number, since it is larger than the sum of its proper divisors (10126810).

13502404 is a wasteful number, since it uses less digits than its factorization.

13502404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375605 (or 3375603 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 13502404 is about 3674.5617425756. The cubic root of 13502404 is about 238.1242907050.

Adding to 13502404 its reverse (40420531), we get a palindrome (53922935).

It can be divided in two parts, 1350240 and 4, that added together give a square (1350244 = 1162²).

The spelling of 13502404 in words is "thirteen million, five hundred two thousand, four hundred four".