1089098842 has 8 divisors (see below), whose sum is σ = 1759313556. Its totient is φ = 502660992.

The previous prime is 1089098833. The next prime is 1089098849. The reversal of 1089098842 is 2488909801.

It can be written as a sum of positive squares in 2 ways, for example, as 1036260481 + 52838361 = 32191^2 + 7269^2 .

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

It is a super-2 number, since 2×1089098842² = 2372272575291481928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1089098849) 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 3 ways as a sum of consecutive naturals, for example, 20944183 + ... + 20944234.

Almost surely, 2^1089098842 is an apocalyptic number.

1089098842 is a deficient number, since it is larger than the sum of its proper divisors (670214714).

1089098842 is a wasteful number, since it uses less digits than its factorization.

1089098842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41888432.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 1089098842 is about 33001.4975720800. The cubic root of 1089098842 is about 1028.8587737073.

The spelling of 1089098842 in words is "one billion, eighty-nine million, ninety-eight thousand, eight hundred forty-two".