449918 has 12 divisors (see below), whose sum is σ = 785232. Its totient is φ = 192780.

The previous prime is 449879. The next prime is 449921. The reversal of 449918 is 819944.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

449918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2198 + ... + 2393.

It is an arithmetic number, because the mean of its divisors is an integer number (65436).

2⁴⁴⁹⁹¹⁸ is an apocalyptic number.

449918 is a deficient number, since it is larger than the sum of its proper divisors (335314).

449918 is a wasteful number, since it uses less digits than its factorization.

449918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607 (or 4600 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 449918 is about 670.7592712740. The cubic root of 449918 is about 76.6262883363.

The spelling of 449918 in words is "four hundred forty-nine thousand, nine hundred eighteen".