238388404 has 12 divisors (see below), whose sum is σ = 417954628. Its totient is φ = 118972800.

The previous prime is 238388401. The next prime is 238388407. The reversal of 238388404 is 404883832.

It is an interprime number because it is at equal distance from previous prime (238388401) and next prime (238388407).

It can be written as a sum of positive squares in 2 ways, for example, as 33039504 + 205348900 = 5748^2 + 14330^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238388401) 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, 52917 + ... + 57244.

Almost surely, 2^238388404 is an apocalyptic number.

It is an amenable number.

238388404 is a deficient number, since it is larger than the sum of its proper divisors (179566224).

238388404 is a wasteful number, since it uses less digits than its factorization.

238388404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110706 (or 110704 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 238388404 is about 15439.8317348344. The cubic root of 238388404 is about 620.0523750413.

The spelling of 238388404 in words is "two hundred thirty-eight million, three hundred eighty-eight thousand, four hundred four".