238105228 has 12 divisors (see below), whose sum is σ = 416841040. Its totient is φ = 119007792.

The previous prime is 238105201. The next prime is 238105229. The reversal of 238105228 is 822501832.

It is a self number, because there is not a number n which added to its sum of digits gives 238105228.

It is not an unprimeable number, because it can be changed into a prime (238105229) 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, 2650 + ... + 21982.

Almost surely, 2^238105228 is an apocalyptic number.

It is an amenable number.

238105228 is a deficient number, since it is larger than the sum of its proper divisors (178735812).

238105228 is a wasteful number, since it uses less digits than its factorization.

238105228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22416 (or 22414 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 238105228 is about 15430.6587027256. The cubic root of 238105228 is about 619.8067625334.

The spelling of 238105228 in words is "two hundred thirty-eight million, one hundred five thousand, two hundred twenty-eight".