2444540 has 48 divisors (see below), whose sum is σ = 6182400. Its totient is φ = 793152.

The previous prime is 2444537. The next prime is 2444557. The reversal of 2444540 is 454442.

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, 2201 + ... + 3119.

It is an arithmetic number, because the mean of its divisors is an integer number (128800).

2^2444540 is an apocalyptic number.

2444540 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 2444540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3091200).

2444540 is an abundant number, since it is smaller than the sum of its proper divisors (3737860).

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

2444540 is a wasteful number, since it uses less digits than its factorization.

2444540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 2444540 is about 1563.5024784119. The cubic root of 2444540 is about 134.7097559506.

Adding to 2444540 its reverse (454442), we get a palindrome (2898982).

The spelling of 2444540 in words is "two million, four hundred forty-four thousand, five hundred forty".