4040217 has 12 divisors (see below), whose sum is σ = 6143280. Its totient is φ = 2551608.

The previous prime is 4040207. The next prime is 4040219. The reversal of 4040217 is 7120404.

It is a happy number.

It is not a de Polignac number, because 4040217 - 2¹¹ = 4038169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4040217.

It is not an unprimeable number, because it can be changed into a prime (4040219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11643 + ... + 11984.

It is an arithmetic number, because the mean of its divisors is an integer number (511940).

Almost surely, 2^4040217 is an apocalyptic number.

It is an amenable number.

4040217 is a deficient number, since it is larger than the sum of its proper divisors (2103063).

4040217 is a wasteful number, since it uses less digits than its factorization.

4040217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23652 (or 23649 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 4040217 is about 2010.0291042669. The cubic root of 4040217 is about 159.2703363560.

The spelling of 4040217 in words is "four million, forty thousand, two hundred seventeen".