13983444 has 36 divisors (see below), whose sum is σ = 35578816. Its totient is φ = 4630608.

The previous prime is 13983443. The next prime is 13983479. The reversal of 13983444 is 44438931.

13983444 is a `hidden beast` number, since 139 + 83 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13983444² = 391073412202272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13983399 and 13983408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4677 + ... + 7059.

Almost surely, 2^13983444 is an apocalyptic number.

It is an amenable number.

13983444 is an abundant number, since it is smaller than the sum of its proper divisors (21595372).

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

13983444 is a wasteful number, since it uses less digits than its factorization.

13983444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556 (or 2551 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 13983444 is about 3739.4443437495. Note that the first 3 decimals coincide. The cubic root of 13983444 is about 240.9191834300.

The spelling of 13983444 in words is "thirteen million, nine hundred eighty-three thousand, four hundred forty-four".