238734459 has 10 divisors (see below), whose sum is σ = 356628140. Its totient is φ = 159156252.

The previous prime is 238734443. The next prime is 238734499. The reversal of 238734459 is 954437832.

It is not a de Polignac number, because 238734459 - 2⁴ = 238734443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238734439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1473589 + ... + 1473750.

It is an arithmetic number, because the mean of its divisors is an integer number (35662814).

Almost surely, 2^238734459 is an apocalyptic number.

238734459 is a deficient number, since it is larger than the sum of its proper divisors (117893681).

238734459 is an equidigital number, since it uses as much as digits as its factorization.

238734459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947351 (or 2947342 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 238734459 is about 15451.0342372283. The cubic root of 238734459 is about 620.3522616650.

The spelling of 238734459 in words is "two hundred thirty-eight million, seven hundred thirty-four thousand, four hundred fifty-nine".