13423424 has 84 divisors (see below), whose sum is σ = 32516064. Its totient is φ = 5384448.

The previous prime is 13423411. The next prime is 13423451. The reversal of 13423424 is 42432431.

It is a self number, because there is not a number n which added to its sum of digits gives 13423424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161687 + ... + 161769.

It is an arithmetic number, because the mean of its divisors is an integer number (387096).

Almost surely, 2^13423424 is an apocalyptic number.

13423424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13423424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16258032).

13423424 is an abundant number, since it is smaller than the sum of its proper divisors (19092640).

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

13423424 is an equidigital number, since it uses as much as digits as its factorization.

13423424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 111 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 13423424 is about 3663.7991211310. The cubic root of 13423424 is about 237.6590934048.

Adding to 13423424 its reverse (42432431), we get a palindrome (55855855).

The spelling of 13423424 in words is "thirteen million, four hundred twenty-three thousand, four hundred twenty-four".