1089279168 has 28 divisors (see below), whose sum is σ = 2882051640. Its totient is φ = 363092992.

The previous prime is 1089279167. The next prime is 1089279197. The reversal of 1089279168 is 8619729801.

It is a self number, because there is not a number n which added to its sum of digits gives 1089279168.

It is not an unprimeable number, because it can be changed into a prime (1089279167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2836473 + ... + 2836856.

Almost surely, 2^1089279168 is an apocalyptic number.

It is an amenable number.

1089279168 is an abundant number, since it is smaller than the sum of its proper divisors (1792772472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089279168 is an equidigital number, since it uses as much as digits as its factorization.

1089279168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673344 (or 5673334 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The square root of 1089279168 is about 33004.2295471353. The cubic root of 1089279168 is about 1028.9155545189.

The spelling of 1089279168 in words is "one billion, eighty-nine million, two hundred seventy-nine thousand, one hundred sixty-eight".