1089081722 has 8 divisors (see below), whose sum is σ = 1638304500. Its totient is φ = 542980224.

The previous prime is 1089081619. The next prime is 1089081733. The reversal of 1089081722 is 2271809801.

It can be written as a sum of positive squares in 2 ways, for example, as 958459681 + 130622041 = 30959^2 + 11429^2 .

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, 779447 + ... + 780842.

Almost surely, 2^1089081722 is an apocalyptic number.

1089081722 is a deficient number, since it is larger than the sum of its proper divisors (549222778).

1089081722 is a wasteful number, since it uses less digits than its factorization.

1089081722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560640.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 1089081722 is about 33001.2381888922. The cubic root of 1089081722 is about 1028.8533826587.

The spelling of 1089081722 in words is "one billion, eighty-nine million, eighty-one thousand, seven hundred twenty-two".