4489440 has 96 divisors (see below), whose sum is σ = 14515200. Its totient is φ = 1165824.

The previous prime is 4489423. The next prime is 4489477. The reversal of 4489440 is 449844.

4489440 = T₁₀₅ + T₁₀₆ + ... + T₃₀₃.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22461 + ... + 22659.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

Almost surely, 2^4489440 is an apocalyptic number.

4489440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4489440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7257600).

4489440 is an abundant number, since it is smaller than the sum of its proper divisors (10025760).

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

4489440 is a wasteful number, since it uses less digits than its factorization.

4489440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 4489440 is about 2118.8298657514. The cubic root of 4489440 is about 164.9671192515.

The spelling of 4489440 in words is "four million, four hundred eighty-nine thousand, four hundred forty".