1089882394 has 4 divisors (see below), whose sum is σ = 1634823594. Its totient is φ = 544941196.

The previous prime is 1089882383. The next prime is 1089882433. The reversal of 1089882394 is 4932889801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 606981769 + 482900625 = 24637^2 + 21975^2 .

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 as a sum of consecutive naturals, namely, 272470597 + ... + 272470600.

Almost surely, 2^1089882394 is an apocalyptic number.

1089882394 is a deficient number, since it is larger than the sum of its proper divisors (544941200).

1089882394 is an equidigital number, since it uses as much as digits as its factorization.

1089882394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544941199.

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 1089882394 is about 33013.3668988790. The cubic root of 1089882394 is about 1029.1054519898.

The spelling of 1089882394 in words is "one billion, eighty-nine million, eight hundred eighty-two thousand, three hundred ninety-four".