269609085 has 24 divisors (see below), whose sum is σ = 483439320. Its totient is φ = 138832512.

The previous prime is 269609083. The next prime is 269609101. The reversal of 269609085 is 580906962.

It can be written as a sum of positive squares in 4 ways, for example, as 14791716 + 254817369 = 3846^2 + 15963^2 .

It is not a de Polignac number, because 269609085 - 2¹ = 269609083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 269609085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (269609083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101994 + ... + 104603.

It is an arithmetic number, because the mean of its divisors is an integer number (20143305).

Almost surely, 2^269609085 is an apocalyptic number.

It is an amenable number.

269609085 is a deficient number, since it is larger than the sum of its proper divisors (213830235).

269609085 is a wasteful number, since it uses less digits than its factorization.

269609085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206637 (or 206634 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 269609085 is about 16419.7772518387. Note that the first 3 decimals coincide. The cubic root of 269609085 is about 646.0183301134.

The spelling of 269609085 in words is "two hundred sixty-nine million, six hundred nine thousand, eighty-five".