238997850 has 96 divisors (see below), whose sum is σ = 729536640. Its totient is φ = 50423040.

The previous prime is 238997821. The next prime is 238997887. The reversal of 238997850 is 58799832.

238997850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 238997793 and 238997802.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4896 + ... + 22404.

It is an arithmetic number, because the mean of its divisors is an integer number (7599340).

Almost surely, 2^238997850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238997850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364768320).

238997850 is an abundant number, since it is smaller than the sum of its proper divisors (490538790).

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

238997850 is a wasteful number, since it uses less digits than its factorization.

238997850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17544 (or 17539 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 238997850 is about 15459.5552976145. Note that the first 3 decimals coincide. The cubic root of 238997850 is about 620.5803186030.

The spelling of 238997850 in words is "two hundred thirty-eight million, nine hundred ninety-seven thousand, eight hundred fifty".