13580404 has 6 divisors (see below), whose sum is σ = 23765714. Its totient is φ = 6790200.

The previous prime is 13580401. The next prime is 13580407. The reversal of 13580404 is 40408531.

It is an interprime number because it is at equal distance from previous prime (13580401) and next prime (13580407).

It can be written as a sum of positive squares in only one way, i.e., 11916304 + 1664100 = 3452^2 + 1290^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13580401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1697547 + ... + 1697554.

Almost surely, 2^13580404 is an apocalyptic number.

It is an amenable number.

13580404 is a deficient number, since it is larger than the sum of its proper divisors (10185310).

13580404 is a wasteful number, since it uses less digits than its factorization.

13580404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395105 (or 3395103 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13580404 is about 3685.1599693907. The cubic root of 13580404 is about 238.5819386869.

Adding to 13580404 its reverse (40408531), we get a palindrome (53988935).

The spelling of 13580404 in words is "thirteen million, five hundred eighty thousand, four hundred four".