40394339 has 2 divisors, whose sum is σ = 40394340. Its totient is φ = 40394338.

The previous prime is 40394327. The next prime is 40394377. The reversal of 40394339 is 93349304.

40394339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40394339 - 2¹⁶ = 40328803 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 40394299 and 40394308.

It is not a weakly prime, because it can be changed into another prime (40394239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20197169 + 20197170.

It is an arithmetic number, because the mean of its divisors is an integer number (20197170).

Almost surely, 2^40394339 is an apocalyptic number.

40394339 is a deficient number, since it is larger than the sum of its proper divisors (1).

40394339 is an equidigital number, since it uses as much as digits as its factorization.

40394339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 40394339 is about 6355.6540969439. The cubic root of 40394339 is about 343.1153666217.

The spelling of 40394339 in words is "forty million, three hundred ninety-four thousand, three hundred thirty-nine".