13044840 has 32 divisors (see below), whose sum is σ = 39134880. Its totient is φ = 3478592.

The previous prime is 13044827. The next prime is 13044853. The reversal of 13044840 is 4844031.

It is an interprime number because it is at equal distance from previous prime (13044827) and next prime (13044853).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13044840.

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, 54234 + ... + 54473.

It is an arithmetic number, because the mean of its divisors is an integer number (1222965).

Almost surely, 2^13044840 is an apocalyptic number.

13044840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044840 is an abundant number, since it is smaller than the sum of its proper divisors (26090040).

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

13044840 is a wasteful number, since it uses less digits than its factorization.

13044840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108721 (or 108717 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 13044840 is about 3611.7641118988. The cubic root of 13044840 is about 235.4035017394.

Adding to 13044840 its reverse (4844031), we get a palindrome (17888871).

The spelling of 13044840 in words is "thirteen million, forty-four thousand, eight hundred forty".