40346039 has 2 divisors, whose sum is σ = 40346040. Its totient is φ = 40346038.

The previous prime is 40345999. The next prime is 40346057. The reversal of 40346039 is 93064304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40346039 - 2¹⁶ = 40280503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40346099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20173019 + 20173020.

It is an arithmetic number, because the mean of its divisors is an integer number (20173020).

Almost surely, 2^40346039 is an apocalyptic number.

40346039 is a deficient number, since it is larger than the sum of its proper divisors (1).

40346039 is an equidigital number, since it uses as much as digits as its factorization.

40346039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 40346039 is about 6351.8531941474. The cubic root of 40346039 is about 342.9785563465.

The spelling of 40346039 in words is "forty million, three hundred forty-six thousand, thirty-nine".