4040443511 has 16 divisors (see below), whose sum is σ = 4568342016. Its totient is φ = 3545552736.

The previous prime is 4040443483. The next prime is 4040443541. The reversal of 4040443511 is 1153440404.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4040443511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040443541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7286 + ... + 90188.

It is an arithmetic number, because the mean of its divisors is an integer number (285521376).

Almost surely, 2^4040443511 is an apocalyptic number.

4040443511 is a deficient number, since it is larger than the sum of its proper divisors (527898505).

4040443511 is a wasteful number, since it uses less digits than its factorization.

4040443511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83102.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4040443511 is about 63564.4830939417. The cubic root of 4040443511 is about 1592.7331274806.

Adding to 4040443511 its reverse (1153440404), we get a palindrome (5193883915).

The spelling of 4040443511 in words is "four billion, forty million, four hundred forty-three thousand, five hundred eleven".