40512673 has 2 divisors, whose sum is σ = 40512674. Its totient is φ = 40512672.

The previous prime is 40512643. The next prime is 40512679. The reversal of 40512673 is 37621504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23348224 + 17164449 = 4832^2 + 4143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40512673 is a prime.

It is not a weakly prime, because it can be changed into another prime (40512679) 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, 20256336 + 20256337.

It is an arithmetic number, because the mean of its divisors is an integer number (20256337).

Almost surely, 2^40512673 is an apocalyptic number.

It is an amenable number.

40512673 is a deficient number, since it is larger than the sum of its proper divisors (1).

40512673 is an equidigital number, since it uses as much as digits as its factorization.

40512673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 40512673 is about 6364.9566377156. The cubic root of 40512673 is about 343.4500886937.

It can be divided in two parts, 4051 and 2673, that added together give a square (6724 = 82²).

The spelling of 40512673 in words is "forty million, five hundred twelve thousand, six hundred seventy-three".