1188238 has 4 divisors (see below), whose sum is σ = 1782360. Its totient is φ = 594118.

The previous prime is 1188233. The next prime is 1188247. The reversal of 1188238 is 8328811.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297058 + ... + 297061.

It is an arithmetic number, because the mean of its divisors is an integer number (445590).

2^1188238 is an apocalyptic number.

1188238 is a deficient number, since it is larger than the sum of its proper divisors (594122).

1188238 is an equidigital number, since it uses as much as digits as its factorization.

1188238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594121.

The product of its digits is 3072, while the sum is 31.

The square root of 1188238 is about 1090.0633009142. The cubic root of 1188238 is about 105.9175221709.

The spelling of 1188238 in words is "one million, one hundred eighty-eight thousand, two hundred thirty-eight".