13228949 has 8 divisors (see below), whose sum is σ = 13715328. Its totient is φ = 12751200.

The previous prime is 13228913. The next prime is 13228951. The reversal of 13228949 is 94982231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13228949 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 (13228049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (1714416).

Almost surely, 2^13228949 is an apocalyptic number.

It is an amenable number.

13228949 is a deficient number, since it is larger than the sum of its proper divisors (486379).

13228949 is an equidigital number, since it uses as much as digits as its factorization.

13228949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315.

The product of its digits is 31104, while the sum is 38.

The square root of 13228949 is about 3637.1622179936. The cubic root of 13228949 is about 236.5057918357.

The spelling of 13228949 in words is "thirteen million, two hundred twenty-eight thousand, nine hundred forty-nine".