2144031140 has 24 divisors (see below), whose sum is σ = 4508589120. Its totient is φ = 856446048.

The previous prime is 2144031137. The next prime is 2144031157. The reversal of 2144031140 is 411304412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57752 + ... + 87311.

It is an arithmetic number, because the mean of its divisors is an integer number (187857880).

Almost surely, 2^2144031140 is an apocalyptic number.

2144031140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144031140 is an abundant number, since it is smaller than the sum of its proper divisors (2364557980).

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

2144031140 is a wasteful number, since it uses less digits than its factorization.

2144031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145811 (or 145809 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2144031140 is about 46303.6838707246. The cubic root of 2144031140 is about 1289.4673882434.

Adding to 2144031140 its reverse (411304412), we get a palindrome (2555335552).

The spelling of 2144031140 in words is "two billion, one hundred forty-four million, thirty-one thousand, one hundred forty".