4045391669 has 24 divisors (see below), whose sum is σ = 4692240000. Its totient is φ = 3475422720.

The previous prime is 4045391653. The next prime is 4045391681. The reversal of 4045391669 is 9661935404.

It is a happy number.

It is not a de Polignac number, because 4045391669 - 2⁴ = 4045391653 is a prime.

It is a super-2 number, since 2×4045391669² = 32730387511229211122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045391369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030292 + ... + 1034210.

It is an arithmetic number, because the mean of its divisors is an integer number (195510000).

Almost surely, 2^4045391669 is an apocalyptic number.

It is an amenable number.

4045391669 is a deficient number, since it is larger than the sum of its proper divisors (646848331).

4045391669 is a wasteful number, since it uses less digits than its factorization.

4045391669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409 (or 4398 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 4045391669 is about 63603.3935336787. The cubic root of 4045391669 is about 1593.3830462432.

The spelling of 4045391669 in words is "four billion, forty-five million, three hundred ninety-one thousand, six hundred sixty-nine".