1109436009 has 32 divisors (see below), whose sum is σ = 1662612480. Its totient is φ = 652132800.

The previous prime is 1109436007. The next prime is 1109436019. The reversal of 1109436009 is 9006349011.

It is not a de Polignac number, because 1109436009 - 2¹ = 1109436007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1109436007) 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, 437074 + ... + 439604.

It is an arithmetic number, because the mean of its divisors is an integer number (51956640).

Almost surely, 2^1109436009 is an apocalyptic number.

It is an amenable number.

1109436009 is a deficient number, since it is larger than the sum of its proper divisors (553176471).

1109436009 is a wasteful number, since it uses less digits than its factorization.

1109436009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1109436009 is about 33308.1973243825. The cubic root of 1109436009 is about 1035.2234136952.

The spelling of 1109436009 in words is "one billion, one hundred nine million, four hundred thirty-six thousand, nine".