1140204309 has 8 divisors (see below), whose sum is σ = 1521822912. Its totient is φ = 759360960.

The previous prime is 1140204259. The next prime is 1140204319. The reversal of 1140204309 is 9034020411.

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

It is not a de Polignac number, because 1140204309 - 2⁷ = 1140204181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140204319) 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, 190372 + ... + 196269.

It is an arithmetic number, because the mean of its divisors is an integer number (190227864).

Almost surely, 2^1140204309 is an apocalyptic number.

It is an amenable number.

1140204309 is a deficient number, since it is larger than the sum of its proper divisors (381618603).

1140204309 is an equidigital number, since it uses as much as digits as its factorization.

1140204309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387627.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1140204309 is about 33766.9114518933. The cubic root of 1140204309 is about 1044.7063295729.

The spelling of 1140204309 in words is "one billion, one hundred forty million, two hundred four thousand, three hundred nine".