238857000 has 128 divisors (see below), whose sum is σ = 753442560. Its totient is φ = 62995200.

The previous prime is 238856951. The next prime is 238857007. The reversal of 238857000 is 758832.

238857000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (238857007) 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, 308614 + ... + 309386.

It is an arithmetic number, because the mean of its divisors is an integer number (5886270).

Almost surely, 2^238857000 is an apocalyptic number.

238857000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238857000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376721280).

238857000 is an abundant number, since it is smaller than the sum of its proper divisors (514585560).

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

238857000 is a wasteful number, since it uses less digits than its factorization.

238857000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 238857000 is about 15454.9991912002. Note that the first 3 decimals coincide. The cubic root of 238857000 is about 620.4583845709.

The spelling of 238857000 in words is "two hundred thirty-eight million, eight hundred fifty-seven thousand".