2143404330 has 32 divisors (see below), whose sum is σ = 5155920000. Its totient is φ = 570268992.

The previous prime is 2143404299. The next prime is 2143404331. The reversal of 2143404330 is 334043412.

2143404330 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2143404330.

It is not an unprimeable number, because it can be changed into a prime (2143404331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68205 + ... + 94544.

It is an arithmetic number, because the mean of its divisors is an integer number (161122500).

Almost surely, 2^2143404330 is an apocalyptic number.

2143404330 is an abundant number, since it is smaller than the sum of its proper divisors (3012515670).

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

2143404330 is a wasteful number, since it uses less digits than its factorization.

2143404330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163198.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2143404330 is about 46296.9149080152. The cubic root of 2143404330 is about 1289.3417168985.

Adding to 2143404330 its reverse (334043412), we get a palindrome (2477447742).

The spelling of 2143404330 in words is "two billion, one hundred forty-three million, four hundred four thousand, three hundred thirty".