13634244 has 108 divisors (see below), whose sum is σ = 39167856. Its totient is φ = 4144608.

The previous prime is 13634237. The next prime is 13634273. The reversal of 13634244 is 44243631.

13634244 is a `hidden beast` number, since 1 + 3 + 634 + 24 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (6912) is a multiple of the sum of its prime factors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 164227 + ... + 164309.

Almost surely, 2^13634244 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 13634244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19583928).

13634244 is an abundant number, since it is smaller than the sum of its proper divisors (25533612).

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

13634244 is a wasteful number, since it uses less digits than its factorization.

13634244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 101 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 13634244 is about 3692.4577181059. The cubic root of 13634244 is about 238.8968118359.

Adding to 13634244 its reverse (44243631), we get a palindrome (57877875).

The spelling of 13634244 in words is "thirteen million, six hundred thirty-four thousand, two hundred forty-four".