238987146 has 8 divisors (see below), whose sum is σ = 477974304. Its totient is φ = 79662380.

The previous prime is 238987141. The next prime is 238987159. The reversal of 238987146 is 641789832.

It is a sphenic number, since it is the product of 3 distinct primes.

238987146 is an admirable number.

It is a super-2 number, since 2×238987146² = 114229711906450632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238987095 and 238987104.

It is not an unprimeable number, because it can be changed into a prime (238987141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19915590 + ... + 19915601.

It is an arithmetic number, because the mean of its divisors is an integer number (59746788).

Almost surely, 2^238987146 is an apocalyptic number.

238987146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

238987146 is a wasteful number, since it uses less digits than its factorization.

238987146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39831196.

The product of its digits is 580608, while the sum is 48.

The square root of 238987146 is about 15459.2091000801. The cubic root of 238987146 is about 620.5710538182.

The spelling of 238987146 in words is "two hundred thirty-eight million, nine hundred eighty-seven thousand, one hundred forty-six".