4488640 has 84 divisors (see below), whose sum is σ = 11713464. Its totient is φ = 1637376.

The previous prime is 4488613. The next prime is 4488643. The reversal of 4488640 is 468844.

It is a junction number, because it is equal to n+sod(n) for n = 4488596 and 4488605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4488643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54039 + ... + 54121.

It is an arithmetic number, because the mean of its divisors is an integer number (139446).

Almost surely, 2^4488640 is an apocalyptic number.

4488640 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 4488640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5856732).

4488640 is an abundant number, since it is smaller than the sum of its proper divisors (7224824).

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

4488640 is a wasteful number, since it uses less digits than its factorization.

4488640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 4488640 is about 2118.6410738962. The cubic root of 4488640 is about 164.9573198456.

The spelling of 4488640 in words is "four million, four hundred eighty-eight thousand, six hundred forty".