13533404 has 12 divisors (see below), whose sum is σ = 23714544. Its totient is φ = 6757824.

The previous prime is 13533383. The next prime is 13533409. The reversal of 13533404 is 40433531.

It is a self number, because there is not a number n which added to its sum of digits gives 13533404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13533409) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2177 + ... + 5639.

It is an arithmetic number, because the mean of its divisors is an integer number (1976212).

Almost surely, 2^13533404 is an apocalyptic number.

It is an amenable number.

13533404 is a deficient number, since it is larger than the sum of its proper divisors (10181140).

13533404 is a wasteful number, since it uses less digits than its factorization.

13533404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444 (or 4442 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 13533404 is about 3678.7775143382. Note that the first 3 decimals coincide. The cubic root of 13533404 is about 238.3063869427.

Adding to 13533404 its reverse (40433531), we get a palindrome (53966935).

The spelling of 13533404 in words is "thirteen million, five hundred thirty-three thousand, four hundred four".