13011240 has 64 divisors (see below), whose sum is σ = 42586560. Its totient is φ = 3153920.

The previous prime is 13011223. The next prime is 13011253. The reversal of 13011240 is 4211031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 3609 + ... + 6248.

It is an arithmetic number, because the mean of its divisors is an integer number (665415).

Almost surely, 2^13011240 is an apocalyptic number.

13011240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13011240 is an abundant number, since it is smaller than the sum of its proper divisors (29575320).

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

13011240 is a wasteful number, since it uses less digits than its factorization.

13011240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882 (or 9878 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13011240 is about 3607.1096462403. The cubic root of 13011240 is about 235.2012159223.

Adding to 13011240 its reverse (4211031), we get a palindrome (17222271).

The spelling of 13011240 in words is "thirteen million, eleven thousand, two hundred forty".