43449 has 8 divisors (see below), whose sum is σ = 66240. Its totient is φ = 24816.

The previous prime is 43441. The next prime is 43451. The reversal of 43449 is 94434.

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

It is not a de Polignac number, because 43449 - 2³ = 43441 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43449.

It is not an unprimeable number, because it can be changed into a prime (43441) 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, 1014 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (8280).

2⁴³⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

43449 is a deficient number, since it is larger than the sum of its proper divisors (22791).

43449 is a wasteful number, since it uses less digits than its factorization.

43449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079.

The product of its digits is 1728, while the sum is 24.

The square root of 43449 is about 208.4442371475. Note that the first 3 decimals coincide. The cubic root of 43449 is about 35.1554986012.

The spelling of 43449 in words is "forty-three thousand, four hundred forty-nine".