170042370 has 64 divisors (see below), whose sum is σ = 424448640. Its totient is φ = 43545600.

The previous prime is 170042363. The next prime is 170042371. The reversal of 170042370 is 73240071.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 170042370.

It is not an unprimeable number, because it can be changed into a prime (170042371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209265 + ... + 210075.

It is an arithmetic number, because the mean of its divisors is an integer number (6632010).

Almost surely, 2^170042370 is an apocalyptic number.

170042370 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 170042370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212224320).

170042370 is an abundant number, since it is smaller than the sum of its proper divisors (254406270).

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

170042370 is a wasteful number, since it uses less digits than its factorization.

170042370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 170042370 is about 13040.0295245065. The cubic root of 170042370 is about 554.0118444643.

The spelling of 170042370 in words is "one hundred seventy million, forty-two thousand, three hundred seventy".