2043664004 has 12 divisors (see below), whose sum is σ = 3577349328. Its totient is φ = 1021564200.

The previous prime is 2043664001. The next prime is 2043664009. The reversal of 2043664004 is 4004663402.

It is a happy number.

It is a super-2 number, since 2×2043664004² = 8353125122490624032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2043664001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49262 + ... + 80709.

It is an arithmetic number, because the mean of its divisors is an integer number (298112444).

Almost surely, 2^2043664004 is an apocalyptic number.

It is an amenable number.

2043664004 is a deficient number, since it is larger than the sum of its proper divisors (1533685324).

2043664004 is a wasteful number, since it uses less digits than its factorization.

2043664004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133906 (or 133904 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 2043664004 is about 45206.9021721241. The cubic root of 2043664004 is about 1269.0239889915.

The spelling of 2043664004 in words is "two billion, forty-three million, six hundred sixty-four thousand, four".