40474393 has 2 divisors, whose sum is σ = 40474394. Its totient is φ = 40474392.

The previous prime is 40474391. The next prime is 40474429. The reversal of 40474393 is 39347404.

40474393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23068809 + 17405584 = 4803^2 + 4172^2 .

It is a cyclic number.

It is not a de Polignac number, because 40474393 - 2¹ = 40474391 is a prime.

Together with 40474391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40474391) 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, 20237196 + 20237197.

It is an arithmetic number, because the mean of its divisors is an integer number (20237197).

Almost surely, 2^40474393 is an apocalyptic number.

It is an amenable number.

40474393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40474393 is an equidigital number, since it uses as much as digits as its factorization.

40474393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 40474393 is about 6361.9488366380. The cubic root of 40474393 is about 343.3418804755.

The spelling of 40474393 in words is "forty million, four hundred seventy-four thousand, three hundred ninety-three".