4090440385 has 16 divisors (see below), whose sum is σ = 4943433600. Its totient is φ = 3249127296.

The previous prime is 4090440353. The next prime is 4090440437. The reversal of 4090440385 is 5830440904.

It is a cyclic number.

It is not a de Polignac number, because 4090440385 - 2⁵ = 4090440353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940546 + ... + 944884.

It is an arithmetic number, because the mean of its divisors is an integer number (308964600).

Almost surely, 2^4090440385 is an apocalyptic number.

It is an amenable number.

4090440385 is a deficient number, since it is larger than the sum of its proper divisors (852993215).

4090440385 is a wasteful number, since it uses less digits than its factorization.

4090440385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 4090440385 is about 63956.5507590896. The cubic root of 4090440385 is about 1599.2757640227.

The spelling of 4090440385 in words is "four billion, ninety million, four hundred forty thousand, three hundred eighty-five".