4040172281 has 16 divisors (see below), whose sum is σ = 4340989584. Its totient is φ = 3746770944.

The previous prime is 4040172263. The next prime is 4040172289. The reversal of 4040172281 is 1822710404.

It can be written as a sum of positive squares in 8 ways, for example, as 195552256 + 3844620025 = 13984^2 + 62005^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040172281 - 2¹⁰ = 4040171257 is a prime.

It is a super-3 number, since 3×4040172281³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040172289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326255 + ... + 338411.

It is an arithmetic number, because the mean of its divisors is an integer number (271311849).

Almost surely, 2^4040172281 is an apocalyptic number.

It is an amenable number.

4040172281 is a deficient number, since it is larger than the sum of its proper divisors (300817303).

4040172281 is a wasteful number, since it uses less digits than its factorization.

4040172281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 4040172281 is about 63562.3495553775. The cubic root of 4040172281 is about 1592.6974872783.

Adding to 4040172281 its reverse (1822710404), we get a palindrome (5862882685).

The spelling of 4040172281 in words is "four billion, forty million, one hundred seventy-two thousand, two hundred eighty-one".