13240493 has 4 divisors (see below), whose sum is σ = 15132000. Its totient is φ = 11348988.

The previous prime is 13240489. The next prime is 13240519. The reversal of 13240493 is 39404231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13240493 - 2² = 13240489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240453) 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, 945743 + ... + 945756.

It is an arithmetic number, because the mean of its divisors is an integer number (3783000).

Almost surely, 2^13240493 is an apocalyptic number.

It is an amenable number.

13240493 is a deficient number, since it is larger than the sum of its proper divisors (1891507).

13240493 is an equidigital number, since it uses as much as digits as its factorization.

13240493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891506.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13240493 is about 3638.7488234282. The cubic root of 13240493 is about 236.5745659836.

The spelling of 13240493 in words is "thirteen million, two hundred forty thousand, four hundred ninety-three".