4045406605 has 8 divisors (see below), whose sum is σ = 4860772632. Its totient is φ = 3232135488.

The previous prime is 4045406593. The next prime is 4045406621. The reversal of 4045406605 is 5066045404.

It can be written as a sum of positive squares in 4 ways, for example, as 321233929 + 3724172676 = 17923^2 + 61026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4045406605 - 2⁹ = 4045406093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519474 + ... + 527203.

It is an arithmetic number, because the mean of its divisors is an integer number (607596579).

Almost surely, 2^4045406605 is an apocalyptic number.

It is an amenable number.

4045406605 is a deficient number, since it is larger than the sum of its proper divisors (815366027).

4045406605 is a wasteful number, since it uses less digits than its factorization.

4045406605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047455.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 4045406605 is about 63603.5109486890. The cubic root of 4045406605 is about 1593.3850072185.

The spelling of 4045406605 in words is "four billion, forty-five million, four hundred six thousand, six hundred five".