40657273 has 2 divisors, whose sum is σ = 40657274. Its totient is φ = 40657272.

The previous prime is 40657237. The next prime is 40657297. The reversal of 40657273 is 37275604.

It is a happy number.

40657273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (40657237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31494544 + 9162729 = 5612^2 + 3027^2 .

It is a cyclic number.

It is not a de Polignac number, because 40657273 - 2⁹ = 40656761 is a prime.

It is not a weakly prime, because it can be changed into another prime (40657073) 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, 20328636 + 20328637.

It is an arithmetic number, because the mean of its divisors is an integer number (20328637).

Almost surely, 2^40657273 is an apocalyptic number.

It is an amenable number.

40657273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40657273 is an equidigital number, since it uses as much as digits as its factorization.

40657273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 40657273 is about 6376.3055917984. The cubic root of 40657273 is about 343.8582236431.

The spelling of 40657273 in words is "forty million, six hundred fifty-seven thousand, two hundred seventy-three".