238138794 has 12 divisors (see below), whose sum is σ = 515967426. Its totient is φ = 79379592.

The previous prime is 238138793. The next prime is 238138819. The reversal of 238138794 is 497831832.

It can be written as a sum of positive squares in only one way, i.e., 236021769 + 2117025 = 15363^2 + 1455^2 .

It is not an unprimeable number, because it can be changed into a prime (238138793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6614949 + ... + 6614984.

Almost surely, 2^238138794 is an apocalyptic number.

238138794 is an abundant number, since it is smaller than the sum of its proper divisors (277828632).

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

238138794 is a wasteful number, since it uses less digits than its factorization.

238138794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13229941 (or 13229938 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 238138794 is about 15431.7463042910. The cubic root of 238138794 is about 619.8358861502.

The spelling of 238138794 in words is "two hundred thirty-eight million, one hundred thirty-eight thousand, seven hundred ninety-four".