13730144 has 24 divisors (see below), whose sum is σ = 27125280. Its totient is φ = 6841216.

The previous prime is 13730111. The next prime is 13730147. The reversal of 13730144 is 44103731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13730147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11897 + ... + 12999.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 2^13730144 is an apocalyptic number.

It is an amenable number.

13730144 is a deficient number, since it is larger than the sum of its proper divisors (13395136).

13730144 is a wasteful number, since it uses less digits than its factorization.

13730144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13730144 is about 3705.4208937717. The cubic root of 13730144 is about 239.4556179864.

Adding to 13730144 its reverse (44103731), we get a palindrome (57833875).

The spelling of 13730144 in words is "thirteen million, seven hundred thirty thousand, one hundred forty-four".