449620 has 12 divisors (see below), whose sum is σ = 944244. Its totient is φ = 179840.

The previous prime is 449609. The next prime is 449621. The reversal of 449620 is 26944.

It can be written as a sum of positive squares in 2 ways, for example, as 75076 + 374544 = 274^2 + 612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449621) by changing a digit.

449620 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 3 ways as a sum of consecutive naturals, for example, 11221 + ... + 11260.

It is an arithmetic number, because the mean of its divisors is an integer number (78687).

2⁴⁴⁹⁶²⁰ is an apocalyptic number.

It is an amenable number.

449620 is an abundant number, since it is smaller than the sum of its proper divisors (494624).

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

449620 is a wasteful number, since it uses less digits than its factorization.

449620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22490 (or 22488 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 449620 is about 670.5370981534. The cubic root of 449620 is about 76.6093669735.

The spelling of 449620 in words is "four hundred forty-nine thousand, six hundred twenty".