238730109 has 16 divisors (see below), whose sum is σ = 326751744. Its totient is φ = 154954800.

The previous prime is 238730069. The next prime is 238730119. The reversal of 238730109 is 901037832.

It is not a de Polignac number, because 238730109 - 2²⁴ = 221952893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238730109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238730119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39904 + ... + 45494.

It is an arithmetic number, because the mean of its divisors is an integer number (20421984).

Almost surely, 2^238730109 is an apocalyptic number.

It is an amenable number.

238730109 is a deficient number, since it is larger than the sum of its proper divisors (88021635).

238730109 is a wasteful number, since it uses less digits than its factorization.

238730109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 238730109 is about 15450.8934693111. The cubic root of 238730109 is about 620.3484938124.

The spelling of 238730109 in words is "two hundred thirty-eight million, seven hundred thirty thousand, one hundred nine".