40302329 has 2 divisors, whose sum is σ = 40302330. Its totient is φ = 40302328.

The previous prime is 40302323. The next prime is 40302347. The reversal of 40302329 is 92320304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26759929 + 13542400 = 5173^2 + 3680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40302329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40302323) 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, 20151164 + 20151165.

It is an arithmetic number, because the mean of its divisors is an integer number (20151165).

Almost surely, 2^40302329 is an apocalyptic number.

It is an amenable number.

40302329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40302329 is an equidigital number, since it uses as much as digits as its factorization.

40302329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 40302329 is about 6348.4115336043. The cubic root of 40302329 is about 342.8546531483.

The spelling of 40302329 in words is "forty million, three hundred two thousand, three hundred twenty-nine".