13423144 has 16 divisors (see below), whose sum is σ = 28764000. Its totient is φ = 5752752.

The previous prime is 13423117. The next prime is 13423199. The reversal of 13423144 is 44132431.

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, 119794 + ... + 119905.

It is an arithmetic number, because the mean of its divisors is an integer number (1797750).

Almost surely, 2^13423144 is an apocalyptic number.

13423144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13423144 is an abundant number, since it is smaller than the sum of its proper divisors (15340856).

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

13423144 is a wasteful number, since it uses less digits than its factorization.

13423144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239712 (or 239708 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 13423144 is about 3663.7609092297. The cubic root of 13423144 is about 237.6574409449.

Adding to 13423144 its reverse (44132431), we get a palindrome (57555575).

The spelling of 13423144 in words is "thirteen million, four hundred twenty-three thousand, one hundred forty-four".