13403424 has 24 divisors (see below), whose sum is σ = 35184240. Its totient is φ = 4467776.

The previous prime is 13403399. The next prime is 13403431. The reversal of 13403424 is 42430431.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 13403424.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69714 + ... + 69905.

It is an arithmetic number, because the mean of its divisors is an integer number (1466010).

Almost surely, 2^13403424 is an apocalyptic number.

It is an amenable number.

13403424 is an abundant number, since it is smaller than the sum of its proper divisors (21780816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13403424 is a wasteful number, since it uses less digits than its factorization.

13403424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139632 (or 139624 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13403424 is about 3661.0686964328. The cubic root of 13403424 is about 237.5410027084.

Adding to 13403424 its reverse (42430431), we get a palindrome (55833855).

The spelling of 13403424 in words is "thirteen million, four hundred three thousand, four hundred twenty-four".