13228401 has 8 divisors (see below), whose sum is σ = 17674560. Its totient is φ = 8800592.

The previous prime is 13228367. The next prime is 13228409. The reversal of 13228401 is 10482231.

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

It is a cyclic number.

It is not a de Polignac number, because 13228401 - 2⁹ = 13227889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13228409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805 + ... + 5858.

It is an arithmetic number, because the mean of its divisors is an integer number (2209320).

Almost surely, 2^13228401 is an apocalyptic number.

It is an amenable number.

13228401 is a deficient number, since it is larger than the sum of its proper divisors (4446159).

13228401 is an equidigital number, since it uses as much as digits as its factorization.

13228401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13228401 is about 3637.0868837574. The cubic root of 13228401 is about 236.5025260947.

The spelling of 13228401 in words is "thirteen million, two hundred twenty-eight thousand, four hundred one".