1189225838 has 4 divisors (see below), whose sum is σ = 1783838760. Its totient is φ = 594612918.

The previous prime is 1189225831. The next prime is 1189225847. The reversal of 1189225838 is 8385229811.

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

It is a junction number, because it is equal to n+sod(n) for n = 1189225792 and 1189225801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189225831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297306458 + ... + 297306461.

It is an arithmetic number, because the mean of its divisors is an integer number (445959690).

Almost surely, 2^1189225838 is an apocalyptic number.

1189225838 is a deficient number, since it is larger than the sum of its proper divisors (594612922).

1189225838 is an equidigital number, since it uses as much as digits as its factorization.

1189225838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594612921.

The product of its digits is 276480, while the sum is 47.

The square root of 1189225838 is about 34485.1538781546. The cubic root of 1189225838 is about 1059.4686544282.

The spelling of 1189225838 in words is "one billion, one hundred eighty-nine million, two hundred twenty-five thousand, eight hundred thirty-eight".