2143442200 has 96 divisors (see below), whose sum is σ = 5207814000. Its totient is φ = 819392000.

The previous prime is 2143442179. The next prime is 2143442209. The reversal of 2143442200 is 22443412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143442209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583971 + ... + 587629.

Almost surely, 2^2143442200 is an apocalyptic number.

2143442200 is a gapful number since it is divisible by the number (20) 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 2143442200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2603907000).

2143442200 is an abundant number, since it is smaller than the sum of its proper divisors (3064371800).

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

2143442200 is a wasteful number, since it uses less digits than its factorization.

2143442200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805 (or 3796 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2143442200 is about 46297.3238967438. The cubic root of 2143442200 is about 1289.3493102836.

Adding to 2143442200 its reverse (22443412), we get a palindrome (2165885612).

The spelling of 2143442200 in words is "two billion, one hundred forty-three million, four hundred forty-two thousand, two hundred".