238047819 has 4 divisors (see below), whose sum is σ = 317397096. Its totient is φ = 158698544.

The previous prime is 238047779. The next prime is 238047833. The reversal of 238047819 is 918740832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238047819 - 2¹⁵ = 238015051 is a prime.

It is a super-2 number, since 2×238047819² = 113333528261313522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238047869) 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, 39674634 + ... + 39674639.

It is an arithmetic number, because the mean of its divisors is an integer number (79349274).

Almost surely, 2^238047819 is an apocalyptic number.

238047819 is a deficient number, since it is larger than the sum of its proper divisors (79349277).

238047819 is an equidigital number, since it uses as much as digits as its factorization.

238047819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79349276.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 238047819 is about 15428.7983653945. The cubic root of 238047819 is about 619.7569451384.

The spelling of 238047819 in words is "two hundred thirty-eight million, forty-seven thousand, eight hundred nineteen".