13015040 has 96 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 4915200.

The previous prime is 13015007. The next prime is 13015043. The reversal of 13015040 is 4051031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317420 + ... + 317460.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 2^13015040 is an apocalyptic number.

13015040 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 13015040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16511040).

13015040 is an abundant number, since it is smaller than the sum of its proper divisors (20007040).

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

13015040 is an equidigital number, since it uses as much as digits as its factorization.

13015040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13015040 is about 3607.6363453098. The cubic root of 13015040 is about 235.2241109378.

Adding to 13015040 its reverse (4051031), we get a palindrome (17066071).

The spelling of 13015040 in words is "thirteen million, fifteen thousand, forty".