238242818 has 8 divisors (see below), whose sum is σ = 389851920. Its totient is φ = 108292180.

The previous prime is 238242793. The next prime is 238242839. The reversal of 238242818 is 818242832.

It is a happy number.

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

It is a super-2 number, since 2×238242818² = 113519280657162248, which contains 22 as substring.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 5414588 + ... + 5414631.

It is an arithmetic number, because the mean of its divisors is an integer number (48731490).

Almost surely, 2^238242818 is an apocalyptic number.

238242818 is a deficient number, since it is larger than the sum of its proper divisors (151609102).

238242818 is a wasteful number, since it uses less digits than its factorization.

238242818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10829232.

The product of its digits is 49152, while the sum is 38.

The square root of 238242818 is about 15435.1163908796. The cubic root of 238242818 is about 619.9261254332.

The spelling of 238242818 in words is "two hundred thirty-eight million, two hundred forty-two thousand, eight hundred eighteen".