449870 has 8 divisors (see below), whose sum is σ = 809784. Its totient is φ = 179944.

The previous prime is 449851. The next prime is 449879. The reversal of 449870 is 78944.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22484 + ... + 22503.

It is an arithmetic number, because the mean of its divisors is an integer number (101223).

2⁴⁴⁹⁸⁷⁰ is an apocalyptic number.

449870 is a deficient number, since it is larger than the sum of its proper divisors (359914).

449870 is a wasteful number, since it uses less digits than its factorization.

449870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44994.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 449870 is about 670.7234899718. The cubic root of 449870 is about 76.6235632526.

The spelling of 449870 in words is "four hundred forty-nine thousand, eight hundred seventy".