169085944 has 32 divisors (see below), whose sum is σ = 337225680. Its totient is φ = 79204864.

The previous prime is 169085929. The next prime is 169085947. The reversal of 169085944 is 449580961.

It is a happy number.

It is a super-2 number, since 2×169085944² = 57180112916742272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 169085894 and 169085903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169085947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28134 + ... + 33610.

Almost surely, 2^169085944 is an apocalyptic number.

It is an amenable number.

169085944 is a deficient number, since it is larger than the sum of its proper divisors (168139736).

169085944 is a wasteful number, since it uses less digits than its factorization.

169085944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727 (or 5723 counting only the distinct ones).

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

The square root of 169085944 is about 13003.3051183151. The cubic root of 169085944 is about 552.9711863970.

The spelling of 169085944 in words is "one hundred sixty-nine million, eighty-five thousand, nine hundred forty-four".