13115040 has 96 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 3446784.

The previous prime is 13115023. The next prime is 13115087. The reversal of 13115040 is 4051131.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42567 + ... + 42873.

It is an arithmetic number, because the mean of its divisors is an integer number (436590).

Almost surely, 2^13115040 is an apocalyptic number.

13115040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13115040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20956320).

13115040 is an abundant number, since it is smaller than the sum of its proper divisors (28797600).

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

13115040 is a wasteful number, since it uses less digits than its factorization.

13115040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13115040 is about 3621.4693150709. The cubic root of 13115040 is about 235.8250163202.

Adding to 13115040 its reverse (4051131), we get a palindrome (17166171).

The spelling of 13115040 in words is "thirteen million, one hundred fifteen thousand, forty".