238892109 has 16 divisors (see below), whose sum is σ = 341055360. Its totient is φ = 148206080.

The previous prime is 238892083. The next prime is 238892131. The reversal of 238892109 is 901298832.

It is a cyclic number.

It is not a de Polignac number, because 238892109 - 2⁵ = 238892077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238892189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21777 + ... + 30854.

It is an arithmetic number, because the mean of its divisors is an integer number (21315960).

Almost surely, 2^238892109 is an apocalyptic number.

It is an amenable number.

238892109 is a deficient number, since it is larger than the sum of its proper divisors (102163251).

238892109 is a wasteful number, since it uses less digits than its factorization.

238892109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52740.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 238892109 is about 15456.1349955285. The cubic root of 238892109 is about 620.4887829630.

The spelling of 238892109 in words is "two hundred thirty-eight million, eight hundred ninety-two thousand, one hundred nine".