13380491 has 4 divisors (see below), whose sum is σ = 13438152. Its totient is φ = 13322832.

The previous prime is 13380487. The next prime is 13380511. The reversal of 13380491 is 19408331.

13380491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13380491 - 2² = 13380487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13380401) 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, 28481 + ... + 28946.

It is an arithmetic number, because the mean of its divisors is an integer number (3359538).

Almost surely, 2^13380491 is an apocalyptic number.

13380491 is a deficient number, since it is larger than the sum of its proper divisors (57661).

13380491 is an equidigital number, since it uses as much as digits as its factorization.

13380491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57660.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13380491 is about 3657.9353466129. The cubic root of 13380491 is about 237.4054493442.

The spelling of 13380491 in words is "thirteen million, three hundred eighty thousand, four hundred ninety-one".