13120340 has 24 divisors (see below), whose sum is σ = 27814752. Its totient is φ = 5198240.

The previous prime is 13120339. The next prime is 13120351. The reversal of 13120340 is 4302131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (1158948).

Almost surely, 2^13120340 is an apocalyptic number.

13120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120340 is an abundant number, since it is smaller than the sum of its proper divisors (14694412).

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

13120340 is a wasteful number, since it uses less digits than its factorization.

13120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247 (or 6245 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13120340 is about 3622.2009883495. The cubic root of 13120340 is about 235.8567789443.

Adding to 13120340 its reverse (4302131), we get a palindrome (17422471).

The spelling of 13120340 in words is "thirteen million, one hundred twenty thousand, three hundred forty".