238242247 has 8 divisors (see below), whose sum is σ = 240411920. Its totient is φ = 236079360.

The previous prime is 238242239. The next prime is 238242293. The reversal of 238242247 is 742242832.

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 238242247 - 2³ = 238242239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238242217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90583 + ... + 93175.

It is an arithmetic number, because the mean of its divisors is an integer number (30051490).

Almost surely, 2^238242247 is an apocalyptic number.

238242247 is a deficient number, since it is larger than the sum of its proper divisors (2169673).

238242247 is a wasteful number, since it uses less digits than its factorization.

238242247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393.

The product of its digits is 43008, while the sum is 34.

The square root of 238242247 is about 15435.0978940854. The cubic root of 238242247 is about 619.9256301708.

The spelling of 238242247 in words is "two hundred thirty-eight million, two hundred forty-two thousand, two hundred forty-seven".