449421 has 8 divisors (see below), whose sum is σ = 684864. Its totient is φ = 256800.

The previous prime is 449419. The next prime is 449437. The reversal of 449421 is 124944.

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

It is not a de Polignac number, because 449421 - 2¹ = 449419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449391 and 449400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449411) 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, 10680 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (85608).

2⁴⁴⁹⁴²¹ is an apocalyptic number.

It is an amenable number.

449421 is a deficient number, since it is larger than the sum of its proper divisors (235443).

449421 is a wasteful number, since it uses less digits than its factorization.

449421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411.

The product of its digits is 1152, while the sum is 24.

The square root of 449421 is about 670.3886932221. The cubic root of 449421 is about 76.5980629732.

The spelling of 449421 in words is "four hundred forty-nine thousand, four hundred twenty-one".