40744973 has 2 divisors, whose sum is σ = 40744974. Its totient is φ = 40744972.

The previous prime is 40744967. The next prime is 40744993. The reversal of 40744973 is 37944704.

It is a happy number.

40744973 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., 31393609 + 9351364 = 5603^2 + 3058^2 .

It is a cyclic number.

It is not a de Polignac number, because 40744973 - 2⁶ = 40744909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40744933) 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, 20372486 + 20372487.

It is an arithmetic number, because the mean of its divisors is an integer number (20372487).

Almost surely, 2^40744973 is an apocalyptic number.

It is an amenable number.

40744973 is a deficient number, since it is larger than the sum of its proper divisors (1).

40744973 is an equidigital number, since it uses as much as digits as its factorization.

40744973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 40744973 is about 6383.1789102296. The cubic root of 40744973 is about 344.1052865255.

The spelling of 40744973 in words is "forty million, seven hundred forty-four thousand, nine hundred seventy-three".