40444273 has 2 divisors, whose sum is σ = 40444274. Its totient is φ = 40444272.

The previous prime is 40444267. The next prime is 40444291. The reversal of 40444273 is 37244404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40043584 + 400689 = 6328^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 40444273 - 2¹⁷ = 40313201 is a prime.

It is not a weakly prime, because it can be changed into another prime (40444213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222136 + 20222137.

It is an arithmetic number, because the mean of its divisors is an integer number (20222137).

Almost surely, 2^40444273 is an apocalyptic number.

It is an amenable number.

40444273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444273 is an equidigital number, since it uses as much as digits as its factorization.

40444273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 40444273 is about 6359.5811969028. The cubic root of 40444273 is about 343.2566906142.

Adding to 40444273 its reverse (37244404), we get a palindrome (77688677).

The spelling of 40444273 in words is "forty million, four hundred forty-four thousand, two hundred seventy-three".