4040433261 has 12 divisors (see below), whose sum is σ = 5836742080. Its totient is φ = 2693363400.

The previous prime is 4040433223. The next prime is 4040433269. The reversal of 4040433261 is 1623340404.

It is not a de Polignac number, because 4040433261 - 2¹⁰ = 4040432237 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 (4040433269) 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 11 ways as a sum of consecutive naturals, for example, 145170 + ... + 170748.

Almost surely, 2^4040433261 is an apocalyptic number.

It is an amenable number.

4040433261 is a deficient number, since it is larger than the sum of its proper divisors (1796308819).

4040433261 is a wasteful number, since it uses less digits than its factorization.

4040433261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43136 (or 43133 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 4040433261 is about 63564.4024671042. The cubic root of 4040433261 is about 1592.7317806377.

Adding to 4040433261 its reverse (1623340404), we get a palindrome (5663773665).

The spelling of 4040433261 in words is "four billion, forty million, four hundred thirty-three thousand, two hundred sixty-one".