4449820 has 24 divisors (see below), whose sum is σ = 9390528. Its totient is φ = 1771200.

The previous prime is 4449817. The next prime is 4449821. The reversal of 4449820 is 289444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449821) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5010 + ... + 5830.

It is an arithmetic number, because the mean of its divisors is an integer number (391272).

Almost surely, 2^4449820 is an apocalyptic number.

It is an amenable number.

4449820 is an abundant number, since it is smaller than the sum of its proper divisors (4940708).

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

4449820 is a wasteful number, since it uses less digits than its factorization.

4449820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4449820 is about 2109.4596464498. The cubic root of 4449820 is about 164.4803978823.

The spelling of 4449820 in words is "four million, four hundred forty-nine thousand, eight hundred twenty".