238158148 has 12 divisors (see below), whose sum is σ = 416950380. Its totient is φ = 119029472.

The previous prime is 238158119. The next prime is 238158149. The reversal of 238158148 is 841851832.

It can be written as a sum of positive squares in 2 ways, for example, as 59721984 + 178436164 = 7728^2 + 13358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 238158148.

It is not an unprimeable number, because it can be changed into a prime (238158149) 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, 283 + ... + 21826.

It is an arithmetic number, because the mean of its divisors is an integer number (34745865).

Almost surely, 2^238158148 is an apocalyptic number.

It is an amenable number.

238158148 is a deficient number, since it is larger than the sum of its proper divisors (178792232).

238158148 is a wasteful number, since it uses less digits than its factorization.

238158148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24806 (or 24804 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 238158148 is about 15432.3733754727. The cubic root of 238158148 is about 619.8526774487.

The spelling of 238158148 in words is "two hundred thirty-eight million, one hundred fifty-eight thousand, one hundred forty-eight".