238342170 has 128 divisors (see below), whose sum is σ = 647626752. Its totient is φ = 56105280.

The previous prime is 238342147. The next prime is 238342187. The reversal of 238342170 is 71243832.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1876647 + ... + 1876773.

It is an arithmetic number, because the mean of its divisors is an integer number (5059584).

Almost surely, 2^238342170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238342170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323813376).

238342170 is an abundant number, since it is smaller than the sum of its proper divisors (409284582).

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

238342170 is a wasteful number, since it uses less digits than its factorization.

238342170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 238342170 is about 15438.3344308899. The cubic root of 238342170 is about 620.0122873042.

The spelling of 238342170 in words is "two hundred thirty-eight million, three hundred forty-two thousand, one hundred seventy".