13824444 has 12 divisors (see below), whose sum is σ = 32257064. Its totient is φ = 4608144.

The previous prime is 13824443. The next prime is 13824463. The reversal of 13824444 is 44442831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13824444² = 382230503818272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13824443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576007 + ... + 576030.

Almost surely, 2^13824444 is an apocalyptic number.

It is an amenable number.

13824444 is an abundant number, since it is smaller than the sum of its proper divisors (18432620).

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

13824444 is a wasteful number, since it uses less digits than its factorization.

13824444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152044 (or 1152042 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 13824444 is about 3718.1237203730. The cubic root of 13824444 is about 240.0025694169.

The spelling of 13824444 in words is "thirteen million, eight hundred twenty-four thousand, four hundred forty-four".