8438449 has 16 divisors (see below), whose sum is σ = 9155520. Its totient is φ = 7761600.

The previous prime is 8438429. The next prime is 8438459. The reversal of 8438449 is 9448348.

It is a cyclic number.

It is not a de Polignac number, because 8438449 - 2¹¹ = 8436401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438429) 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, 83499 + ... + 83599.

It is an arithmetic number, because the mean of its divisors is an integer number (572220).

Almost surely, 2^8438449 is an apocalyptic number.

It is an amenable number.

8438449 is a deficient number, since it is larger than the sum of its proper divisors (717071).

8438449 is a wasteful number, since it uses less digits than its factorization.

8438449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240.

The product of its digits is 110592, while the sum is 40.

The square root of 8438449 is about 2904.9008588935. The cubic root of 8438449 is about 203.5889534987.

The spelling of 8438449 in words is "eight million, four hundred thirty-eight thousand, four hundred forty-nine".