1105944840 has 960 divisors, whose sum is σ = 5190958080. Its totient is φ = 205286400.

The previous prime is 1105944787. The next prime is 1105944881. The reversal of 1105944840 is 484495011.

It is a super-2 number, since 2×1105944840² = 2446227978245251200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1105944795 and 1105944804.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 35675625 + ... + 35675655.

It is an arithmetic number, because the mean of its divisors is an integer number (5407248).

Almost surely, 2^1105944840 is an apocalyptic number.

1105944840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105944840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2595479040).

1105944840 is an abundant number, since it is smaller than the sum of its proper divisors (4085013240).

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

1105944840 is a wasteful number, since it uses less digits than its factorization.

1105944840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1105944840 is about 33255.7489766807. The cubic root of 1105944840 is about 1034.1363936570.

The spelling of 1105944840 in words is "one billion, one hundred five million, nine hundred forty-four thousand, eight hundred forty".