238391822 has 16 divisors (see below), whose sum is σ = 381177600. Its totient is φ = 111491640.

The previous prime is 238391821. The next prime is 238391837. The reversal of 238391822 is 228193832.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238391821) 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 7 ways as a sum of consecutive naturals, for example, 36704 + ... + 42707.

It is an arithmetic number, because the mean of its divisors is an integer number (23823600).

Almost surely, 2^238391822 is an apocalyptic number.

238391822 is a deficient number, since it is larger than the sum of its proper divisors (142785778).

238391822 is a wasteful number, since it uses less digits than its factorization.

238391822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79511.

The product of its digits is 41472, while the sum is 38.

The square root of 238391822 is about 15439.9424221724. The cubic root of 238391822 is about 620.0553384529.

The spelling of 238391822 in words is "two hundred thirty-eight million, three hundred ninety-one thousand, eight hundred twenty-two".