13844457 has 18 divisors (see below), whose sum is σ = 21982506. Its totient is φ = 8389920.

The previous prime is 13844449. The next prime is 13844471. The reversal of 13844457 is 75444831.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 184041 = 3696^2 + 429^2 .

It is not a de Polignac number, because 13844457 - 2³ = 13844449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13844437) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5268 + ... + 7445.

Almost surely, 2^13844457 is an apocalyptic number.

It is an amenable number.

13844457 is a deficient number, since it is larger than the sum of its proper divisors (8138049).

13844457 is a wasteful number, since it uses less digits than its factorization.

13844457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12741 (or 12727 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 13844457 is about 3720.8140238394. The cubic root of 13844457 is about 240.1183270683.

The spelling of 13844457 in words is "thirteen million, eight hundred forty-four thousand, four hundred fifty-seven".