169946868 has 96 divisors (see below), whose sum is σ = 513802240. Its totient is φ = 42456960.

The previous prime is 169946863. The next prime is 169946893. The reversal of 169946868 is 868649961.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169946863) 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 31 ways as a sum of consecutive naturals, for example, 16653 + ... + 24843.

Almost surely, 2^169946868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169946868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256901120).

169946868 is an abundant number, since it is smaller than the sum of its proper divisors (343855372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169946868 is a wasteful number, since it uses less digits than its factorization.

169946868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8237 (or 8235 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 169946868 is about 13036.3671319889. The cubic root of 169946868 is about 553.9081072849.

The spelling of 169946868 in words is "one hundred sixty-nine million, nine hundred forty-six thousand, eight hundred sixty-eight".