4040289 has 24 divisors (see below), whose sum is σ = 6544512. Its totient is φ = 2380320.

The previous prime is 4040287. The next prime is 4040291. The reversal of 4040289 is 9820404.

It is an interprime number because it is at equal distance from previous prime (4040287) and next prime (4040291).

It is not a de Polignac number, because 4040289 - 2¹ = 4040287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4040287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3112 + ... + 4214.

It is an arithmetic number, because the mean of its divisors is an integer number (272688).

Almost surely, 2^4040289 is an apocalyptic number.

It is an amenable number.

4040289 is a deficient number, since it is larger than the sum of its proper divisors (2504223).

4040289 is a wasteful number, since it uses less digits than its factorization.

4040289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4040289 is about 2010.0470143755. The cubic root of 4040289 is about 159.2712824600.

The spelling of 4040289 in words is "four million, forty thousand, two hundred eighty-nine".