238065858 has 64 divisors (see below), whose sum is σ = 589680000. Its totient is φ = 70751232.

The previous prime is 238065811. The next prime is 238065871. The reversal of 238065858 is 858560832.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10618 + ... + 24266.

It is an arithmetic number, because the mean of its divisors is an integer number (9213750).

Almost surely, 2^238065858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238065858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294840000).

238065858 is an abundant number, since it is smaller than the sum of its proper divisors (351614142).

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

238065858 is a wasteful number, since it uses less digits than its factorization.

238065858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13696 (or 13690 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 238065858 is about 15429.3829429436. The cubic root of 238065858 is about 619.7725995746.

The spelling of 238065858 in words is "two hundred thirty-eight million, sixty-five thousand, eight hundred fifty-eight".