238808029 has 2 divisors, whose sum is σ = 238808030. Its totient is φ = 238808028.

The previous prime is 238808023. The next prime is 238808051. The reversal of 238808029 is 920808832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227315929 + 11492100 = 15077^2 + 3390^2 .

It is a cyclic number.

It is not a de Polignac number, because 238808029 - 2¹³ = 238799837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238807982 and 238808000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238808023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119404014 + 119404015.

It is an arithmetic number, because the mean of its divisors is an integer number (119404015).

Almost surely, 2^238808029 is an apocalyptic number.

It is an amenable number.

238808029 is a deficient number, since it is larger than the sum of its proper divisors (1).

238808029 is an equidigital number, since it uses as much as digits as its factorization.

238808029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 238808029 is about 15453.4148006193. The cubic root of 238808029 is about 620.4159790810.

The spelling of 238808029 in words is "two hundred thirty-eight million, eight hundred eight thousand, twenty-nine".