169628988 has 12 divisors (see below), whose sum is σ = 395801000. Its totient is φ = 56542992.

The previous prime is 169628981. The next prime is 169628989. The reversal of 169628988 is 889826961.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169628981) 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 3 ways as a sum of consecutive naturals, for example, 7067863 + ... + 7067886.

Almost surely, 2^169628988 is an apocalyptic number.

It is an amenable number.

169628988 is an abundant number, since it is smaller than the sum of its proper divisors (226172012).

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

169628988 is a wasteful number, since it uses less digits than its factorization.

169628988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135756 (or 14135754 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 57.

The square root of 169628988 is about 13024.1693785055. The cubic root of 169628988 is about 553.5625361327.

The spelling of 169628988 in words is "one hundred sixty-nine million, six hundred twenty-eight thousand, nine hundred eighty-eight".