238663442 has 16 divisors (see below), whose sum is σ = 379352160. Its totient is φ = 112223808.

The previous prime is 238663441. The next prime is 238663471. The reversal of 238663442 is 244366832.

It is a junction number, because it is equal to n+sod(n) for n = 238663396 and 238663405.

It is not an unprimeable number, because it can be changed into a prime (238663441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65513 + ... + 69059.

It is an arithmetic number, because the mean of its divisors is an integer number (23709510).

Almost surely, 2^238663442 is an apocalyptic number.

238663442 is a deficient number, since it is larger than the sum of its proper divisors (140688718).

238663442 is a wasteful number, since it uses less digits than its factorization.

238663442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5545.

The product of its digits is 165888, while the sum is 38.

The square root of 238663442 is about 15448.7359353444. The cubic root of 238663442 is about 620.2907429300.

The spelling of 238663442 in words is "two hundred thirty-eight million, six hundred sixty-three thousand, four hundred forty-two".