1091841120 has 120 divisors (see below), whose sum is σ = 3853335024. Its totient is φ = 291154176.

The previous prime is 1091841083. The next prime is 1091841131. The reversal of 1091841120 is 211481901.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29164 + ... + 55083.

Almost surely, 2^1091841120 is an apocalyptic number.

1091841120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1091841120 is an abundant number, since it is smaller than the sum of its proper divisors (2761493904).

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

1091841120 is an equidigital number, since it uses as much as digits as its factorization.

1091841120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84274 (or 84257 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1091841120 is about 33043.0192325096. The cubic root of 1091841120 is about 1029.7215824602.

The spelling of 1091841120 in words is "one billion, ninety-one million, eight hundred forty-one thousand, one hundred twenty".