13424140 has 24 divisors (see below), whose sum is σ = 28792512. Its totient is φ = 5255040.

The previous prime is 13424123. The next prime is 13424141. The reversal of 13424140 is 4142431.

13424140 is nontrivially palindromic in base 13.

It is not an unprimeable number, because it can be changed into a prime (13424141) 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 7 ways as a sum of consecutive naturals, for example, 6201 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (1199688).

Almost surely, 2^13424140 is an apocalyptic number.

13424140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13424140 is an abundant number, since it is smaller than the sum of its proper divisors (15368372).

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

13424140 is a wasteful number, since it uses less digits than its factorization.

13424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337 (or 14335 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 13424140 is about 3663.8968326087. The cubic root of 13424140 is about 237.6633188763.

Adding to 13424140 its reverse (4142431), we get a palindrome (17566571).

The spelling of 13424140 in words is "thirteen million, four hundred twenty-four thousand, one hundred forty".