13078540 has 12 divisors (see below), whose sum is σ = 27464976. Its totient is φ = 5231408.

The previous prime is 13078537. The next prime is 13078543. The reversal of 13078540 is 4587031.

It is an interprime number because it is at equal distance from previous prime (13078537) and next prime (13078543).

It is a junction number, because it is equal to n+sod(n) for n = 13078499 and 13078508.

It is not an unprimeable number, because it can be changed into a prime (13078543) 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, 326944 + ... + 326983.

It is an arithmetic number, because the mean of its divisors is an integer number (2288748).

Almost surely, 2^13078540 is an apocalyptic number.

13078540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13078540 is an abundant number, since it is smaller than the sum of its proper divisors (14386436).

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

13078540 is a wasteful number, since it uses less digits than its factorization.

13078540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653936 (or 653934 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13078540 is about 3616.4264129110. The cubic root of 13078540 is about 235.6060409899.

The spelling of 13078540 in words is "thirteen million, seventy-eight thousand, five hundred forty".