238222389 has 4 divisors (see below), whose sum is σ = 317629856. Its totient is φ = 158814924.

The previous prime is 238222379. The next prime is 238222393. The reversal of 238222389 is 983222832.

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 238222389 - 2⁴ = 238222373 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 (238222379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39703729 + ... + 39703734.

It is an arithmetic number, because the mean of its divisors is an integer number (79407464).

Almost surely, 2^238222389 is an apocalyptic number.

It is an amenable number.

238222389 is a deficient number, since it is larger than the sum of its proper divisors (79407467).

238222389 is an equidigital number, since it uses as much as digits as its factorization.

238222389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79407466.

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

The square root of 238222389 is about 15434.4546064965. The cubic root of 238222389 is about 619.9084056506.

The spelling of 238222389 in words is "two hundred thirty-eight million, two hundred twenty-two thousand, three hundred eighty-nine".