238550221 has 8 divisors (see below), whose sum is σ = 293600384. Its totient is φ = 188742960.

The previous prime is 238550167. The next prime is 238550231. The reversal of 238550221 is 122055832.

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

It is not a de Polignac number, because 238550221 - 2⁹ = 238549709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238550221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238550231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310625 + ... + 1310806.

It is an arithmetic number, because the mean of its divisors is an integer number (36700048).

Almost surely, 2^238550221 is an apocalyptic number.

It is an amenable number.

238550221 is a deficient number, since it is larger than the sum of its proper divisors (55050163).

238550221 is a wasteful number, since it uses less digits than its factorization.

238550221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621451.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 238550221 is about 15445.0710908043. The cubic root of 238550221 is about 620.1926395840.

The spelling of 238550221 in words is "two hundred thirty-eight million, five hundred fifty thousand, two hundred twenty-one".