1189234898 has 8 divisors (see below), whose sum is σ = 1888784892. Its totient is φ = 559639936.

The previous prime is 1189234883. The next prime is 1189234967. The reversal of 1189234898 is 8984329811.

It can be written as a sum of positive squares in 2 ways, for example, as 1189077289 + 157609 = 34483^2 + 397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17488715 + ... + 17488782.

Almost surely, 2^1189234898 is an apocalyptic number.

1189234898 is a deficient number, since it is larger than the sum of its proper divisors (699549994).

1189234898 is a wasteful number, since it uses less digits than its factorization.

1189234898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34977516.

The product of its digits is 995328, while the sum is 53.

The square root of 1189234898 is about 34485.2852387797. The cubic root of 1189234898 is about 1059.4713449073.

The spelling of 1189234898 in words is "one billion, one hundred eighty-nine million, two hundred thirty-four thousand, eight hundred ninety-eight".