13919449 has 8 divisors (see below), whose sum is σ = 14445000. Its totient is φ = 13396992.

The previous prime is 13919417. The next prime is 13919467. The reversal of 13919449 is 94491931.

13919449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2576025 + 11343424 = 1605^2 + 3368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13919449 - 2⁵ = 13919417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13919749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12487 + ... + 13555.

It is an arithmetic number, because the mean of its divisors is an integer number (1805625).

Almost surely, 2^13919449 is an apocalyptic number.

It is an amenable number.

13919449 is a deficient number, since it is larger than the sum of its proper divisors (525551).

13919449 is a wasteful number, since it uses less digits than its factorization.

13919449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547.

The product of its digits is 34992, while the sum is 40.

The square root of 13919449 is about 3730.8777787539. The cubic root of 13919449 is about 240.5511004640.

The spelling of 13919449 in words is "thirteen million, nine hundred nineteen thousand, four hundred forty-nine".