13401144 has 48 divisors (see below), whose sum is σ = 36465000. Its totient is φ = 4446144.

The previous prime is 13401131. The next prime is 13401149. The reversal of 13401144 is 44110431.

13401144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26607 + ... + 27105.

Almost surely, 2^13401144 is an apocalyptic number.

It is an amenable number.

13401144 is an abundant number, since it is smaller than the sum of its proper divisors (23063856).

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

13401144 is a wasteful number, since it uses less digits than its factorization.

13401144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 13401144 is about 3660.7572987020. The cubic root of 13401144 is about 237.5275329115.

Adding to 13401144 its reverse (44110431), we get a palindrome (57511575).

The spelling of 13401144 in words is "thirteen million, four hundred one thousand, one hundred forty-four".