4004666406 has 40 divisors (see below), whose sum is σ = 9663687264. Its totient is φ = 1232204400.

The previous prime is 4004666401. The next prime is 4004666417. The reversal of 4004666406 is 6046664004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004666401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 948670 + ... + 952881.

Almost surely, 2^4004666406 is an apocalyptic number.

4004666406 is an abundant number, since it is smaller than the sum of its proper divisors (5659020858).

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

4004666406 is a wasteful number, since it uses less digits than its factorization.

4004666406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901578 (or 1901569 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 4004666406 is about 63282.4336289305. The cubic root of 4004666406 is about 1588.0181002300.

The spelling of 4004666406 in words is "four billion, four million, six hundred sixty-six thousand, four hundred six".