449645 has 16 divisors (see below), whose sum is σ = 639360. Its totient is φ = 297024.

The previous prime is 449629. The next prime is 449653. The reversal of 449645 is 546944.

It is a happy number.

It is not a de Polignac number, because 449645 - 2⁴ = 449629 is a prime.

It is a super-3 number, since 3×449645³ = 272728522767033375, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 449645.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2⁴⁴⁹⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

449645 is a deficient number, since it is larger than the sum of its proper divisors (189715).

449645 is a wasteful number, since it uses less digits than its factorization.

449645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its digits is 17280, while the sum is 32.

The square root of 449645 is about 670.5557396667. Note that the first 3 decimals coincide. The cubic root of 449645 is about 76.6107868381.

The spelling of 449645 in words is "four hundred forty-nine thousand, six hundred forty-five".