1109028459 has 16 divisors (see below), whose sum is σ = 1843580160. Its totient is φ = 576118560.

The previous prime is 1109028433. The next prime is 1109028493. The reversal of 1109028459 is 9548209011.

It is not a de Polignac number, because 1109028459 - 2⁸ = 1109028203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1109028419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2400264 + ... + 2400725.

It is an arithmetic number, because the mean of its divisors is an integer number (115223760).

Almost surely, 2^1109028459 is an apocalyptic number.

1109028459 is a deficient number, since it is larger than the sum of its proper divisors (734551701).

1109028459 is a wasteful number, since it uses less digits than its factorization.

1109028459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801010.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1109028459 is about 33302.0788990718. The cubic root of 1109028459 is about 1035.0966354729.

The spelling of 1109028459 in words is "one billion, one hundred nine million, twenty-eight thousand, four hundred fifty-nine".