8440950169 has 4 divisors (see below), whose sum is σ = 8454119220. Its totient is φ = 8427781120.

The previous prime is 8440950131. The next prime is 8440950187. The reversal of 8440950169 is 9610590448.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8008102144 + 432848025 = 89488^2 + 20805^2 .

It is a cyclic number.

It is not a de Polignac number, because 8440950169 - 2²⁹ = 7904079257 is a prime.

It is a super-2 number, since 2×8440950169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8440950769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6583564 + ... + 6584845.

It is an arithmetic number, because the mean of its divisors is an integer number (2113529805).

Almost surely, 2^8440950169 is an apocalyptic number.

It is an amenable number.

8440950169 is a deficient number, since it is larger than the sum of its proper divisors (13169051).

8440950169 is a wasteful number, since it uses less digits than its factorization.

8440950169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13169050.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 8440950169 is about 91874.6437761802. The cubic root of 8440950169 is about 2036.0906620254.

The spelling of 8440950169 in words is "eight billion, four hundred forty million, nine hundred fifty thousand, one hundred sixty-nine".