1089543908 has 12 divisors (see below), whose sum is σ = 1908046140. Its totient is φ = 544387872.

The previous prime is 1089543901. The next prime is 1089543913. The reversal of 1089543908 is 8093459801.

It can be written as a sum of positive squares in 2 ways, for example, as 294191104 + 795352804 = 17152^2 + 28202^2 .

It is not an unprimeable number, because it can be changed into a prime (1089543901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89591 + ... + 101022.

It is an arithmetic number, because the mean of its divisors is an integer number (159003845).

Almost surely, 2^1089543908 is an apocalyptic number.

It is an amenable number.

1089543908 is a deficient number, since it is larger than the sum of its proper divisors (818502232).

1089543908 is a wasteful number, since it uses less digits than its factorization.

1089543908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192046 (or 192044 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1089543908 is about 33008.2400015511. The cubic root of 1089543908 is about 1028.9989041465.

The spelling of 1089543908 in words is "one billion, eighty-nine million, five hundred forty-three thousand, nine hundred eight".