13340144 has 10 divisors (see below), whose sum is σ = 25846560. Its totient is φ = 6670064.

The previous prime is 13340143. The next prime is 13340167. The reversal of 13340144 is 44104331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416864 + ... + 416895.

It is an arithmetic number, because the mean of its divisors is an integer number (2584656).

Almost surely, 2^13340144 is an apocalyptic number.

It is an amenable number.

13340144 is a deficient number, since it is larger than the sum of its proper divisors (12506416).

13340144 is an equidigital number, since it uses as much as digits as its factorization.

13340144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833767 (or 833761 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13340144 is about 3652.4161865812. The cubic root of 13340144 is about 237.1665881179.

Adding to 13340144 its reverse (44104331), we get a palindrome (57444475).

The spelling of 13340144 in words is "thirteen million, three hundred forty thousand, one hundred forty-four".