13256946 has 80 divisors (see below), whose sum is σ = 32234400. Its totient is φ = 4059072.

The previous prime is 13256941. The next prime is 13256959. The reversal of 13256946 is 64965231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13256946.

It is not an unprimeable number, because it can be changed into a prime (13256941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 181566 + ... + 181638.

It is an arithmetic number, because the mean of its divisors is an integer number (402930).

Almost surely, 2^13256946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13256946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16117200).

13256946 is an abundant number, since it is smaller than the sum of its proper divisors (18977454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13256946 is a wasteful number, since it uses less digits than its factorization.

13256946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 156 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13256946 is about 3641.0089261083. The cubic root of 13256946 is about 236.6725167722.

The spelling of 13256946 in words is "thirteen million, two hundred fifty-six thousand, nine hundred forty-six".