13240353 has 8 divisors (see below), whose sum is σ = 20175808. Its totient is φ = 7565904.

The previous prime is 13240349. The next prime is 13240363. The reversal of 13240353 is 35304231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13240353 - 2² = 13240349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 630493 = 13240353 / (1 + 3 + 2 + 4 + 0 + 3 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13240303) 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, 315226 + ... + 315267.

It is an arithmetic number, because the mean of its divisors is an integer number (2521976).

Almost surely, 2^13240353 is an apocalyptic number.

It is an amenable number.

13240353 is a deficient number, since it is larger than the sum of its proper divisors (6935455).

13240353 is an equidigital number, since it uses as much as digits as its factorization.

13240353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630503.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 13240353 is about 3638.7295859956. The cubic root of 13240353 is about 236.5737321638.

Adding to 13240353 its reverse (35304231), we get a palindrome (48544584).

The spelling of 13240353 in words is "thirteen million, two hundred forty thousand, three hundred fifty-three".