1120040309 has 8 divisors (see below), whose sum is σ = 1124842680. Its totient is φ = 1115248576.

The previous prime is 1120040303. The next prime is 1120040333. The reversal of 1120040309 is 9030400211.

It can be written as a sum of positive squares in 4 ways, for example, as 153016900 + 967023409 = 12370^2 + 31097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120040309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120040303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261227 + ... + 265479.

It is an arithmetic number, because the mean of its divisors is an integer number (140605335).

Almost surely, 2^1120040309 is an apocalyptic number.

It is an amenable number.

1120040309 is a deficient number, since it is larger than the sum of its proper divisors (4802371).

1120040309 is an equidigital number, since it uses as much as digits as its factorization.

1120040309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1120040309 is about 33467.0032868197. The cubic root of 1120040309 is about 1038.5112788068.

The spelling of 1120040309 in words is "one billion, one hundred twenty million, forty thousand, three hundred nine".