13044540 has 24 divisors (see below), whose sum is σ = 36524880. Its totient is φ = 3478528.

The previous prime is 13044539. The next prime is 13044557. The reversal of 13044540 is 4544031.

13044540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108645 + ... + 108764.

It is an arithmetic number, because the mean of its divisors is an integer number (1521870).

Almost surely, 2^13044540 is an apocalyptic number.

13044540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044540 is an abundant number, since it is smaller than the sum of its proper divisors (23480340).

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

13044540 is a wasteful number, since it uses less digits than its factorization.

13044540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217421 (or 217419 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13044540 is about 3611.7225807085. The cubic root of 13044540 is about 235.4016971538.

Adding to 13044540 its reverse (4544031), we get a palindrome (17588571).

The spelling of 13044540 in words is "thirteen million, forty-four thousand, five hundred forty".