449720 has 16 divisors (see below), whose sum is σ = 1011960. Its totient is φ = 179872.

The previous prime is 449699. The next prime is 449741. The reversal of 449720 is 27944.

It is an interprime number because it is at equal distance from previous prime (449699) and next prime (449741).

It is a self number, because there is not a number n which added to its sum of digits gives 449720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5582 + ... + 5661.

2⁴⁴⁹⁷²⁰ is an apocalyptic number.

449720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449720 is an abundant number, since it is smaller than the sum of its proper divisors (562240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449720 is a wasteful number, since it uses less digits than its factorization.

449720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254 (or 11250 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 449720 is about 670.6116610975. The cubic root of 449720 is about 76.6150461165.

The spelling of 449720 in words is "four hundred forty-nine thousand, seven hundred twenty".