2003244144 has 80 divisors (see below), whose sum is σ = 5674458240. Its totient is φ = 603930880.

The previous prime is 2003244137. The next prime is 2003244161. The reversal of 2003244144 is 4414423002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 94387 + ... + 113645.

It is an arithmetic number, because the mean of its divisors is an integer number (70930728).

Almost surely, 2^2003244144 is an apocalyptic number.

2003244144 is a gapful number since it is divisible by the number (24) 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 2003244144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2837229120).

2003244144 is an abundant number, since it is smaller than the sum of its proper divisors (3671214096).

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

2003244144 is a wasteful number, since it uses less digits than its factorization.

2003244144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19478 (or 19472 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2003244144 is about 44757.6154860824. The cubic root of 2003244144 is about 1260.6019094455.

Adding to 2003244144 its reverse (4414423002), we get a palindrome (6417667146).

The spelling of 2003244144 in words is "two billion, three million, two hundred forty-four thousand, one hundred forty-four".