238047457 has 8 divisors (see below), whose sum is σ = 247429440. Its totient is φ = 228743760.

The previous prime is 238047443. The next prime is 238047487. The reversal of 238047457 is 754740832.

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

It is a cyclic number.

It is not a de Polignac number, because 238047457 - 2²⁷ = 103829729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238047487) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13333 + ... + 25570.

It is an arithmetic number, because the mean of its divisors is an integer number (30928680).

Almost surely, 2^238047457 is an apocalyptic number.

It is an amenable number.

238047457 is a deficient number, since it is larger than the sum of its proper divisors (9381983).

238047457 is a wasteful number, since it uses less digits than its factorization.

238047457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39143.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 238047457 is about 15428.7866340811. The cubic root of 238047457 is about 619.7566309829.

The spelling of 238047457 in words is "two hundred thirty-eight million, forty-seven thousand, four hundred fifty-seven".