2143242444 has 24 divisors (see below), whose sum is σ = 5715313408. Its totient is φ = 612354960.

The previous prime is 2143242407. The next prime is 2143242463. The reversal of 2143242444 is 4442423412.

It is a nude number because it is divisible by every one of its digits.

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, 12757312 + ... + 12757479.

Almost surely, 2^2143242444 is an apocalyptic number.

It is an amenable number.

2143242444 is an abundant number, since it is smaller than the sum of its proper divisors (3572070964).

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

2143242444 is a wasteful number, since it uses less digits than its factorization.

2143242444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25514805 (or 25514803 counting only the distinct ones).

The product of its digits is 24576, while the sum is 30.

The square root of 2143242444 is about 46295.1665295633. The cubic root of 2143242444 is about 1289.3092558232.

Adding to 2143242444 its reverse (4442423412), we get a palindrome (6585665856).

The spelling of 2143242444 in words is "two billion, one hundred forty-three million, two hundred forty-two thousand, four hundred forty-four".