13442144 has 24 divisors (see below), whose sum is σ = 27082440. Its totient is φ = 6564096.

The previous prime is 13442131. The next prime is 13442153. The reversal of 13442144 is 44124431.

It is a happy number.

It is a congruent number.

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, 3509 + ... + 6260.

It is an arithmetic number, because the mean of its divisors is an integer number (1128435).

Almost surely, 2^13442144 is an apocalyptic number.

It is an amenable number.

13442144 is an abundant number, since it is smaller than the sum of its proper divisors (13640296).

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

13442144 is an equidigital number, since it uses as much as digits as its factorization.

13442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9822 (or 9814 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 13442144 is about 3666.3529562769. The cubic root of 13442144 is about 237.7695200660.

Adding to 13442144 its reverse (44124431), we get a palindrome (57566575).

The spelling of 13442144 in words is "thirteen million, four hundred forty-two thousand, one hundred forty-four".