1089443485 has 16 divisors (see below), whose sum is σ = 1440641664. Its totient is φ = 785800512.

The previous prime is 1089443483. The next prime is 1089443491. The reversal of 1089443485 is 5843449801.

It is a cyclic number.

It is not a de Polignac number, because 1089443485 - 2¹ = 1089443483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089443483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192097 + ... + 197686.

It is an arithmetic number, because the mean of its divisors is an integer number (90040104).

Almost surely, 2^1089443485 is an apocalyptic number.

It is an amenable number.

1089443485 is a deficient number, since it is larger than the sum of its proper divisors (351198179).

1089443485 is a wasteful number, since it uses less digits than its factorization.

1089443485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389844.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 1089443485 is about 33006.7187857260. The cubic root of 1089443485 is about 1028.9672889814.

The spelling of 1089443485 in words is "one billion, eighty-nine million, four hundred forty-three thousand, four hundred eighty-five".