2002023144 has 96 divisors (see below), whose sum is σ = 5932836000. Its totient is φ = 604851840.

The previous prime is 2002023137. The next prime is 2002023151. The reversal of 2002023144 is 4413202002.

It is an interprime number because it is at equal distance from previous prime (2002023137) and next prime (2002023151).

It is a super-3 number, since 3×2002023144³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272787 + ... + 280029.

It is an arithmetic number, because the mean of its divisors is an integer number (61800375).

Almost surely, 2^2002023144 is an apocalyptic number.

2002023144 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 2002023144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2966418000).

2002023144 is an abundant number, since it is smaller than the sum of its proper divisors (3930812856).

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

2002023144 is a wasteful number, since it uses less digits than its factorization.

2002023144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615 (or 7608 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2002023144 is about 44743.9732701511. The cubic root of 2002023144 is about 1260.3457403442.

Adding to 2002023144 its reverse (4413202002), we get a palindrome (6415225146).

The spelling of 2002023144 in words is "two billion, two million, twenty-three thousand, one hundred forty-four".