13533424 has 20 divisors (see below), whose sum is σ = 26345536. Its totient is φ = 6734592.

The previous prime is 13533419. The next prime is 13533427. The reversal of 13533424 is 42433531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13533427) 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, 1672 + ... + 5464.

Almost surely, 2^13533424 is an apocalyptic number.

It is an amenable number.

13533424 is a deficient number, since it is larger than the sum of its proper divisors (12812112).

13533424 is a wasteful number, since it uses less digits than its factorization.

13533424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 4018 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 13533424 is about 3678.7802326315. The cubic root of 13533424 is about 238.3065043343.

Adding to 13533424 its reverse (42433531), we get a palindrome (55966955).

The spelling of 13533424 in words is "thirteen million, five hundred thirty-three thousand, four hundred twenty-four".