2144431146 has 32 divisors (see below), whose sum is σ = 5038665408. Its totient is φ = 599840640.

The previous prime is 2144431127. The next prime is 2144431193. The reversal of 2144431146 is 6411344412.

It is a Curzon 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, 1248811 + ... + 1250526.

It is an arithmetic number, because the mean of its divisors is an integer number (157458294).

Almost surely, 2^2144431146 is an apocalyptic number.

2144431146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2144431146 is an abundant number, since it is smaller than the sum of its proper divisors (2894234262).

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

2144431146 is a wasteful number, since it uses less digits than its factorization.

2144431146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499366.

The product of its digits is 9216, while the sum is 30.

The square root of 2144431146 is about 46308.0030448302. The cubic root of 2144431146 is about 1289.5475740531.

Adding to 2144431146 its reverse (6411344412), we get a palindrome (8555775558).

The spelling of 2144431146 in words is "two billion, one hundred forty-four million, four hundred thirty-one thousand, one hundred forty-six".