238203489 has 4 divisors (see below), whose sum is σ = 317604656. Its totient is φ = 158802324.

The previous prime is 238203467. The next prime is 238203491. The reversal of 238203489 is 984302832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 238203489 - 2⁸ = 238203233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238203409) 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, 39700579 + ... + 39700584.

It is an arithmetic number, because the mean of its divisors is an integer number (79401164).

Almost surely, 2^238203489 is an apocalyptic number.

It is an amenable number.

238203489 is a deficient number, since it is larger than the sum of its proper divisors (79401167).

238203489 is an equidigital number, since it uses as much as digits as its factorization.

238203489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79401166.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 238203489 is about 15433.8423278197. The cubic root of 238203489 is about 619.8920111956.

The spelling of 238203489 in words is "two hundred thirty-eight million, two hundred three thousand, four hundred eighty-nine".