1089449289 has 6 divisors (see below), whose sum is σ = 1573648986. Its totient is φ = 726299520.

The previous prime is 1089449287. The next prime is 1089449321. The reversal of 1089449289 is 9829449801.

1089449289 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 743489289 + 345960000 = 27267^2 + 18600^2 .

It is not a de Polignac number, because 1089449289 - 2¹ = 1089449287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089449281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60524952 + ... + 60524969.

It is an arithmetic number, because the mean of its divisors is an integer number (262274831).

Almost surely, 2^1089449289 is an apocalyptic number.

It is an amenable number.

1089449289 is a deficient number, since it is larger than the sum of its proper divisors (484199697).

1089449289 is a wasteful number, since it uses less digits than its factorization.

1089449289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121049927 (or 121049924 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 1089449289 is about 33006.8067071021. The cubic root of 1089449289 is about 1028.9691162493.

The spelling of 1089449289 in words is "one billion, eighty-nine million, four hundred forty-nine thousand, two hundred eighty-nine".