238343145 has 32 divisors (see below), whose sum is σ = 405388800. Its totient is φ = 119162880.

The previous prime is 238343143. The next prime is 238343177. The reversal of 238343145 is 541343832.

It is not a de Polignac number, because 238343145 - 2¹ = 238343143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238343143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67381 + ... + 70829.

It is an arithmetic number, because the mean of its divisors is an integer number (12668400).

Almost surely, 2^238343145 is an apocalyptic number.

It is an amenable number.

238343145 is a deficient number, since it is larger than the sum of its proper divisors (167045655).

238343145 is a wasteful number, since it uses less digits than its factorization.

238343145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745.

The product of its digits is 34560, while the sum is 33.

The square root of 238343145 is about 15438.3660080981. The cubic root of 238343145 is about 620.0131327430.

Adding to 238343145 its reverse (541343832), we get a palindrome (779686977).

The spelling of 238343145 in words is "two hundred thirty-eight million, three hundred forty-three thousand, one hundred forty-five".