2444040 has 128 divisors (see below), whose sum is σ = 8524800. Its totient is φ = 622080.

The previous prime is 2444021. The next prime is 2444063. The reversal of 2444040 is 404442.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33444 + ... + 33516.

It is an arithmetic number, because the mean of its divisors is an integer number (66600).

2^2444040 is an apocalyptic number.

2444040 is a gapful number since it is divisible by the number (20) 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 2444040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4262400).

2444040 is an abundant number, since it is smaller than the sum of its proper divisors (6080760).

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

2444040 is a wasteful number, since it uses less digits than its factorization.

2444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2444040 is about 1563.3425728227. The cubic root of 2444040 is about 134.7005709273.

Adding to 2444040 its reverse (404442), we get a palindrome (2848482).

The spelling of 2444040 in words is "two million, four hundred forty-four thousand, forty".