1109730405 has 32 divisors (see below), whose sum is σ = 2094686208. Its totient is φ = 490939200.

The previous prime is 1109730337. The next prime is 1109730407. The reversal of 1109730405 is 5040379011.

It is not a de Polignac number, because 1109730405 - 2¹⁵ = 1109697637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109730407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167211 + ... + 173720.

It is an arithmetic number, because the mean of its divisors is an integer number (65458944).

Almost surely, 2^1109730405 is an apocalyptic number.

1109730405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1109730405 is a deficient number, since it is larger than the sum of its proper divisors (984955803).

1109730405 is a wasteful number, since it uses less digits than its factorization.

1109730405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340977.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1109730405 is about 33312.6163037369. The cubic root of 1109730405 is about 1035.3149733334.

The spelling of 1109730405 in words is "one billion, one hundred nine million, seven hundred thirty thousand, four hundred five".