170645028 has 12 divisors (see below), whose sum is σ = 398171760. Its totient is φ = 56881672.

The previous prime is 170644979. The next prime is 170645039. The reversal of 170645028 is 820546071.

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

It is a super-2 number, since 2×170645028² = 58239451162241568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 170645028.

It is an unprimeable number.

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, 7110198 + ... + 7110221.

It is an arithmetic number, because the mean of its divisors is an integer number (33180980).

Almost surely, 2^170645028 is an apocalyptic number.

It is an amenable number.

170645028 is an abundant number, since it is smaller than the sum of its proper divisors (227526732).

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

170645028 is a wasteful number, since it uses less digits than its factorization.

170645028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14220426 (or 14220424 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 170645028 is about 13063.1170859026. The cubic root of 170645028 is about 554.6655756561.

The spelling of 170645028 in words is "one hundred seventy million, six hundred forty-five thousand, twenty-eight".