13445236 has 48 divisors (see below), whose sum is σ = 28672000. Its totient is φ = 5388768.

The previous prime is 13445233. The next prime is 13445239. The reversal of 13445236 is 63254431.

It is an interprime number because it is at equal distance from previous prime (13445233) and next prime (13445239).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445231) 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 15 ways as a sum of consecutive naturals, for example, 67465 + ... + 67663.

Almost surely, 2^13445236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13445236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14336000).

13445236 is an abundant number, since it is smaller than the sum of its proper divisors (15226764).

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

13445236 is a wasteful number, since it uses less digits than its factorization.

13445236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 354 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 13445236 is about 3666.7746044719. The cubic root of 13445236 is about 237.7877494742.

Adding to 13445236 its reverse (63254431), we get a palindrome (76699667).

The spelling of 13445236 in words is "thirteen million, four hundred forty-five thousand, two hundred thirty-six".