40443673 has 2 divisors, whose sum is σ = 40443674. Its totient is φ = 40443672.

The previous prime is 40443653. The next prime is 40443703. The reversal of 40443673 is 37634404.

40443673 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., 38093584 + 2350089 = 6172^2 + 1533^2 .

It is a cyclic number.

It is not a de Polignac number, because 40443673 - 2¹³ = 40435481 is a prime.

It is not a weakly prime, because it can be changed into another prime (40443643) 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, 20221836 + 20221837.

It is an arithmetic number, because the mean of its divisors is an integer number (20221837).

Almost surely, 2^40443673 is an apocalyptic number.

It is an amenable number.

40443673 is a deficient number, since it is larger than the sum of its proper divisors (1).

40443673 is an equidigital number, since it uses as much as digits as its factorization.

40443673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 40443673 is about 6359.5340238102. The cubic root of 40443673 is about 343.2549931754.

The spelling of 40443673 in words is "forty million, four hundred forty-three thousand, six hundred seventy-three".