2143404224 has 112 divisors (see below), whose sum is σ = 4831323840. Its totient is φ = 936038400.

The previous prime is 2143404203. The next prime is 2143404233. The reversal of 2143404224 is 4224043412.

It is a happy number.

It is a super-2 number, since 2×2143404224² = 9188363334922084352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 2143404193 and 2143404202.

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, 1932182 + ... + 1933290.

It is an arithmetic number, because the mean of its divisors is an integer number (43136820).

Almost surely, 2^2143404224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143404224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2415661920).

2143404224 is an abundant number, since it is smaller than the sum of its proper divisors (2687919616).

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

2143404224 is a wasteful number, since it uses less digits than its factorization.

2143404224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 2143404224 is about 46296.9137632305. The cubic root of 2143404224 is about 1289.3416956441.

Adding to 2143404224 its reverse (4224043412), we get a palindrome (6367447636).

The spelling of 2143404224 in words is "two billion, one hundred forty-three million, four hundred four thousand, two hundred twenty-four".