238040329 has 4 divisors (see below), whose sum is σ = 238166676. Its totient is φ = 237913984.

The previous prime is 238040321. The next prime is 238040353. The reversal of 238040329 is 923040832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223562304 + 14478025 = 14952^2 + 3805^2 .

It is a cyclic number.

It is not a de Polignac number, because 238040329 - 2³ = 238040321 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238040329.

It is not an unprimeable number, because it can be changed into a prime (238040321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60304 + ... + 64129.

It is an arithmetic number, because the mean of its divisors is an integer number (59541669).

Almost surely, 2^238040329 is an apocalyptic number.

It is an amenable number.

238040329 is a deficient number, since it is larger than the sum of its proper divisors (126347).

238040329 is a wasteful number, since it uses less digits than its factorization.

238040329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126346.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 238040329 is about 15428.5556355739. Note that the first 3 decimals coincide. The cubic root of 238040329 is about 619.7504450044.

The spelling of 238040329 in words is "two hundred thirty-eight million, forty thousand, three hundred twenty-nine".