40945393 has 2 divisors, whose sum is σ = 40945394. Its totient is φ = 40945392.

The previous prime is 40945363. The next prime is 40945397. The reversal of 40945393 is 39354904.

40945393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38229489 + 2715904 = 6183^2 + 1648^2 .

It is a cyclic number.

It is not a de Polignac number, because 40945393 - 2²⁵ = 7390961 is a prime.

It is not a weakly prime, because it can be changed into another prime (40945397) 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, 20472696 + 20472697.

It is an arithmetic number, because the mean of its divisors is an integer number (20472697).

Almost surely, 2^40945393 is an apocalyptic number.

It is an amenable number.

40945393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40945393 is an equidigital number, since it uses as much as digits as its factorization.

40945393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 40945393 is about 6398.8587263668. The cubic root of 40945393 is about 344.6685691953.

The spelling of 40945393 in words is "forty million, nine hundred forty-five thousand, three hundred ninety-three".