40321273 has 2 divisors, whose sum is σ = 40321274. Its totient is φ = 40321272.

The previous prime is 40321261. The next prime is 40321279. The reversal of 40321273 is 37212304.

40321273 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., 40284409 + 36864 = 6347^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 40321273 - 2⁵ = 40321241 is a prime.

It is not a weakly prime, because it can be changed into another prime (40321279) 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, 20160636 + 20160637.

It is an arithmetic number, because the mean of its divisors is an integer number (20160637).

Almost surely, 2^40321273 is an apocalyptic number.

It is an amenable number.

40321273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40321273 is an equidigital number, since it uses as much as digits as its factorization.

40321273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 40321273 is about 6349.9033850918. The cubic root of 40321273 is about 342.9083640323.

Adding to 40321273 its reverse (37212304), we get a palindrome (77533577).

The spelling of 40321273 in words is "forty million, three hundred twenty-one thousand, two hundred seventy-three".