238163628 has 12 divisors (see below), whose sum is σ = 555715160. Its totient is φ = 79387872.

The previous prime is 238163623. The next prime is 238163647. The reversal of 238163628 is 826361832.

238163628 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

238163628 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (238163623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9923473 + ... + 9923496.

Almost surely, 2^238163628 is an apocalyptic number.

It is an amenable number.

238163628 is an abundant number, since it is smaller than the sum of its proper divisors (317551532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238163628 is a wasteful number, since it uses less digits than its factorization.

238163628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19846976 (or 19846974 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 238163628 is about 15432.5509232920. The cubic root of 238163628 is about 619.8574316658.

The spelling of 238163628 in words is "two hundred thirty-eight million, one hundred sixty-three thousand, six hundred twenty-eight".