2143204004 has 24 divisors (see below), whose sum is σ = 3780043008. Its totient is φ = 1063209600.

The previous prime is 2143204001. The next prime is 2143204027. The reversal of 2143204004 is 4004023412.

It is not an unprimeable number, because it can be changed into a prime (2143204001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664604 + ... + 667820.

It is an arithmetic number, because the mean of its divisors is an integer number (157501792).

Almost surely, 2^2143204004 is an apocalyptic number.

It is an amenable number.

2143204004 is a deficient number, since it is larger than the sum of its proper divisors (1636839004).

2143204004 is a wasteful number, since it uses less digits than its factorization.

2143204004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2143204004 is about 46294.7513655706. The cubic root of 2143204004 is about 1289.3015476668.

Adding to 2143204004 its reverse (4004023412), we get a palindrome (6147227416).

The spelling of 2143204004 in words is "two billion, one hundred forty-three million, two hundred four thousand, four".