4040243309 has 8 divisors (see below), whose sum is σ = 4098565632. Its totient is φ = 3982280400.

The previous prime is 4040243303. The next prime is 4040243329. The reversal of 4040243309 is 9033420404.

4040243309 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4040243309 - 2¹² = 4040239213 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 (4040243303) 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, 67169 + ... + 112214.

It is an arithmetic number, because the mean of its divisors is an integer number (512320704).

Almost surely, 2^4040243309 is an apocalyptic number.

It is an amenable number.

4040243309 is a deficient number, since it is larger than the sum of its proper divisors (58322323).

4040243309 is a wasteful number, since it uses less digits than its factorization.

4040243309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179707.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 4040243309 is about 63562.9082799080. The cubic root of 4040243309 is about 1592.7068206636.

The spelling of 4040243309 in words is "four billion, forty million, two hundred forty-three thousand, three hundred nine".