13070240 has 24 divisors (see below), whose sum is σ = 30878820. Its totient is φ = 5228032.

The previous prime is 13070231. The next prime is 13070243. The reversal of 13070240 is 4207031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12645136 + 425104 = 3556^2 + 652^2 .

It is not an unprimeable number, because it can be changed into a prime (13070243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40685 + ... + 41004.

Almost surely, 2^13070240 is an apocalyptic number.

13070240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13070240 is an abundant number, since it is smaller than the sum of its proper divisors (17808580).

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

13070240 is an equidigital number, since it uses as much as digits as its factorization.

13070240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81704 (or 81696 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 13070240 is about 3615.2786891193. The cubic root of 13070240 is about 235.5561897587.

Adding to 13070240 its reverse (4207031), we get a palindrome (17277271).

The spelling of 13070240 in words is "thirteen million, seventy thousand, two hundred forty".