13776044 has 24 divisors (see below), whose sum is σ = 25203360. Its totient is φ = 6580224.

The previous prime is 13776031. The next prime is 13776067. The reversal of 13776044 is 44067731.

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 13776044.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11372 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (1050140).

Almost surely, 2^13776044 is an apocalyptic number.

It is an amenable number.

13776044 is a deficient number, since it is larger than the sum of its proper divisors (11427316).

13776044 is a wasteful number, since it uses less digits than its factorization.

13776044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 13776044 is about 3711.6093544445. The cubic root of 13776044 is about 239.7221553190.

The spelling of 13776044 in words is "thirteen million, seven hundred seventy-six thousand, forty-four".