1089119020 has 24 divisors (see below), whose sum is σ = 2495073168. Its totient is φ = 396043200.

The previous prime is 1089118999. The next prime is 1089119021. The reversal of 1089119020 is 209119801.

It is not an unprimeable number, because it can be changed into a prime (1089119021) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2475051 + ... + 2475490.

It is an arithmetic number, because the mean of its divisors is an integer number (103961382).

Almost surely, 2^1089119020 is an apocalyptic number.

1089119020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089119020 is an abundant number, since it is smaller than the sum of its proper divisors (1405954148).

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

1089119020 is a wasteful number, since it uses less digits than its factorization.

1089119020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950561 (or 4950559 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 1089119020 is about 33001.8032840631. The cubic root of 1089119020 is about 1028.8651276406.

The spelling of 1089119020 in words is "one billion, eighty-nine million, one hundred nineteen thousand, twenty".