238109413 has 4 divisors (see below), whose sum is σ = 242012908. Its totient is φ = 234205920.

The previous prime is 238109411. The next prime is 238109423. The reversal of 238109413 is 314901832.

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 51868804 + 186240609 = 7202^2 + 13647^2 .

It is a cyclic number.

It is not a de Polignac number, because 238109413 - 2¹ = 238109411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238109411) 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, 1951656 + ... + 1951777.

It is an arithmetic number, because the mean of its divisors is an integer number (60503227).

Almost surely, 2^238109413 is an apocalyptic number.

It is an amenable number.

238109413 is a deficient number, since it is larger than the sum of its proper divisors (3903495).

238109413 is an equidigital number, since it uses as much as digits as its factorization.

238109413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903494.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 238109413 is about 15430.7943087840. The cubic root of 238109413 is about 619.8103938076.

The spelling of 238109413 in words is "two hundred thirty-eight million, one hundred nine thousand, four hundred thirteen".