1105512040 has 64 divisors (see below), whose sum is σ = 2638785600. Its totient is φ = 415392768.

The previous prime is 1105511959. The next prime is 1105512041. The reversal of 1105512040 is 402155011.

It is a junction number, because it is equal to n+sod(n) for n = 1105511999 and 1105512017.

It is not an unprimeable number, because it can be changed into a prime (1105512041) 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 15 ways as a sum of consecutive naturals, for example, 446887 + ... + 449353.

It is an arithmetic number, because the mean of its divisors is an integer number (41231025).

Almost surely, 2^1105512040 is an apocalyptic number.

1105512040 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 1105512040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319392800).

1105512040 is an abundant number, since it is smaller than the sum of its proper divisors (1533273560).

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

1105512040 is a wasteful number, since it uses less digits than its factorization.

1105512040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1105512040 is about 33249.2411943491. The cubic root of 1105512040 is about 1034.0014765520.

Adding to 1105512040 its reverse (402155011), we get a palindrome (1507667051).

The spelling of 1105512040 in words is "one billion, one hundred five million, five hundred twelve thousand, forty".