170828190 has 80 divisors (see below), whose sum is σ = 494702208. Its totient is φ = 42047424.

The previous prime is 170828137. The next prime is 170828191. The reversal of 170828190 is 91828071.

170828190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×170828190² = 58364540997352200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170828191) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2419 + ... + 18641.

Almost surely, 2^170828190 is an apocalyptic number.

170828190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 170828190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247351104).

170828190 is an abundant number, since it is smaller than the sum of its proper divisors (323874018).

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

170828190 is a wasteful number, since it uses less digits than its factorization.

170828190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16255 (or 16246 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 170828190 is about 13070.1258601438. The cubic root of 170828190 is about 554.8639549672.

The spelling of 170828190 in words is "one hundred seventy million, eight hundred twenty-eight thousand, one hundred ninety".