4449340 has 48 divisors (see below), whose sum is σ = 10874304. Its totient is φ = 1497600.

The previous prime is 4449331. The next prime is 4449343. The reversal of 4449340 is 439444.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4449299 and 4449308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449343) 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 15 ways as a sum of consecutive naturals, for example, 8280 + ... + 8800.

It is an arithmetic number, because the mean of its divisors is an integer number (226548).

Almost surely, 2^4449340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4449340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5437152).

4449340 is an abundant number, since it is smaller than the sum of its proper divisors (6424964).

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

4449340 is a wasteful number, since it uses less digits than its factorization.

4449340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4449340 is about 2109.3458701692. The cubic root of 4449340 is about 164.4744835285.

The spelling of 4449340 in words is "four million, four hundred forty-nine thousand, three hundred forty".