4006005604 has 6 divisors (see below), whose sum is σ = 7010509814. Its totient is φ = 2003002800.

The previous prime is 4006005589. The next prime is 4006005607. The reversal of 4006005604 is 4065006004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3804422400 + 201583204 = 61680^2 + 14198^2 .

It is not an unprimeable number, because it can be changed into a prime (4006005607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500750697 + ... + 500750704.

Almost surely, 2^4006005604 is an apocalyptic number.

It is an amenable number.

4006005604 is a deficient number, since it is larger than the sum of its proper divisors (3004504210).

4006005604 is a wasteful number, since it uses less digits than its factorization.

4006005604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001501405 (or 1001501403 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4006005604 is about 63293.0138640909. The cubic root of 4006005604 is about 1588.1950965499.

The spelling of 4006005604 in words is "four billion, six million, five thousand, six hundred four".