170998120 has 64 divisors (see below), whose sum is σ = 393552720. Its totient is φ = 66852864.

The previous prime is 170998097. The next prime is 170998133. The reversal of 170998120 is 21899071.

It can be written as a sum of positive squares in 8 ways, for example, as 64866916 + 106131204 = 8054^2 + 10302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 170998120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458254 + ... + 458626.

Almost surely, 2^170998120 is an apocalyptic number.

170998120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 170998120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196776360).

170998120 is an abundant number, since it is smaller than the sum of its proper divisors (222554600).

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

170998120 is a wasteful number, since it uses less digits than its factorization.

170998120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 170998120 is about 13076.6249468278. The cubic root of 170998120 is about 555.0478761827.

The spelling of 170998120 in words is "one hundred seventy million, nine hundred ninety-eight thousand, one hundred twenty".