238352166 has 64 divisors (see below), whose sum is σ = 573027840. Its totient is φ = 73003680.

The previous prime is 238352159. The next prime is 238352173. The reversal of 238352166 is 661253832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (238352159) and next prime (238352173).

It is a self number, because there is not a number n which added to its sum of digits gives 238352166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183981 + ... + 185271.

It is an arithmetic number, because the mean of its divisors is an integer number (8953560).

Almost surely, 2^238352166 is an apocalyptic number.

238352166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 238352166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286513920).

238352166 is an abundant number, since it is smaller than the sum of its proper divisors (334675674).

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

238352166 is a wasteful number, since it uses less digits than its factorization.

238352166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1572 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 238352166 is about 15438.6581670817. The cubic root of 238352166 is about 620.0209548936.

The spelling of 238352166 in words is "two hundred thirty-eight million, three hundred fifty-two thousand, one hundred sixty-six".