2144204420 has 12 divisors (see below), whose sum is σ = 4502829324. Its totient is φ = 857681760.

The previous prime is 2144204389. The next prime is 2144204431. The reversal of 2144204420 is 244024412.

It can be written as a sum of positive squares in 2 ways, for example, as 620707396 + 1523497024 = 24914^2 + 39032^2 .

It is a super-2 number, since 2×2144204420² = 9195225189495072800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53605091 + ... + 53605130.

It is an arithmetic number, because the mean of its divisors is an integer number (375235777).

Almost surely, 2^2144204420 is an apocalyptic number.

2144204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144204420 is an abundant number, since it is smaller than the sum of its proper divisors (2358624904).

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

2144204420 is a wasteful number, since it uses less digits than its factorization.

2144204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107210230 (or 107210228 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2144204420 is about 46305.5549583417. The cubic root of 2144204420 is about 1289.5021254395.

Adding to 2144204420 its reverse (244024412), we get a palindrome (2388228832).

The spelling of 2144204420 in words is "two billion, one hundred forty-four million, two hundred four thousand, four hundred twenty".