170212842 has 12 divisors (see below), whose sum is σ = 368794530. Its totient is φ = 56737608.

The previous prime is 170212841. The next prime is 170212873. The reversal of 170212842 is 248212071.

It can be written as a sum of positive squares in only one way, i.e., 170067681 + 145161 = 13041^2 + 381^2 .

It is not an unprimeable number, because it can be changed into a prime (170212841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4728117 + ... + 4728152.

Almost surely, 2^170212842 is an apocalyptic number.

170212842 is an abundant number, since it is smaller than the sum of its proper divisors (198581688).

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

170212842 is a wasteful number, since it uses less digits than its factorization.

170212842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9456277 (or 9456274 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 170212842 is about 13046.5643753442. The cubic root of 170212842 is about 554.1969198351.

The spelling of 170212842 in words is "one hundred seventy million, two hundred twelve thousand, eight hundred forty-two".