1105520388 has 48 divisors (see below), whose sum is σ = 3043160064. Its totient is φ = 305673120.

The previous prime is 1105520371. The next prime is 1105520389. The reversal of 1105520388 is 8830255011.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1105520389) 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, 209670 + ... + 214877.

It is an arithmetic number, because the mean of its divisors is an integer number (63399168).

Almost surely, 2^1105520388 is an apocalyptic number.

It is an amenable number.

1105520388 is an abundant number, since it is smaller than the sum of its proper divisors (1937639676).

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

1105520388 is a wasteful number, since it uses less digits than its factorization.

1105520388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424592 (or 424590 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1105520388 is about 33249.3667308116. The cubic root of 1105520388 is about 1034.0040792140.

Adding to 1105520388 its reverse (8830255011), we get a palindrome (9935775399).

The spelling of 1105520388 in words is "one billion, one hundred five million, five hundred twenty thousand, three hundred eighty-eight".