40808377 has 2 divisors, whose sum is σ = 40808378. Its totient is φ = 40808376.

The previous prime is 40808359. The next prime is 40808393. The reversal of 40808377 is 77380804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24960016 + 15848361 = 4996^2 + 3981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40808377 is a prime.

It is not a weakly prime, because it can be changed into another prime (40848377) 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, 20404188 + 20404189.

It is an arithmetic number, because the mean of its divisors is an integer number (20404189).

Almost surely, 2^40808377 is an apocalyptic number.

It is an amenable number.

40808377 is a deficient number, since it is larger than the sum of its proper divisors (1).

40808377 is an equidigital number, since it uses as much as digits as its factorization.

40808377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 40808377 is about 6388.1434705241. The cubic root of 40808377 is about 344.2836835383.

The spelling of 40808377 in words is "forty million, eight hundred eight thousand, three hundred seventy-seven".