40709759 has 2 divisors, whose sum is σ = 40709760. Its totient is φ = 40709758.

The previous prime is 40709749. The next prime is 40709771. The reversal of 40709759 is 95790704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40709759 - 2⁴ = 40709743 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40709729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20354879 + 20354880.

It is an arithmetic number, because the mean of its divisors is an integer number (20354880).

Almost surely, 2^40709759 is an apocalyptic number.

40709759 is a deficient number, since it is larger than the sum of its proper divisors (1).

40709759 is an equidigital number, since it uses as much as digits as its factorization.

40709759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 40709759 is about 6380.4199705035. The cubic root of 40709759 is about 344.0061265134.

The spelling of 40709759 in words is "forty million, seven hundred nine thousand, seven hundred fifty-nine".