13909049 has 16 divisors (see below), whose sum is σ = 17903616. Its totient is φ = 10486800.

The previous prime is 13909033. The next prime is 13909061. The reversal of 13909049 is 94090931.

13909049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13909049 - 2⁴ = 13909033 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13909019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (1118976).

Almost surely, 2^13909049 is an apocalyptic number.

It is an amenable number.

13909049 is a deficient number, since it is larger than the sum of its proper divisors (3994567).

13909049 is a wasteful number, since it uses less digits than its factorization.

13909049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13909049 is about 3729.4837444343. The cubic root of 13909049 is about 240.4911758036.

The spelling of 13909049 in words is "thirteen million, nine hundred nine thousand, forty-nine".