40604749 has 2 divisors, whose sum is σ = 40604750. Its totient is φ = 40604748.

The previous prime is 40604713. The next prime is 40604777. The reversal of 40604749 is 94740604.

40604749 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., 34892649 + 5712100 = 5907^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 40604749 - 2⁷ = 40604621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40604779) 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, 20302374 + 20302375.

It is an arithmetic number, because the mean of its divisors is an integer number (20302375).

Almost surely, 2^40604749 is an apocalyptic number.

It is an amenable number.

40604749 is a deficient number, since it is larger than the sum of its proper divisors (1).

40604749 is an equidigital number, since it uses as much as digits as its factorization.

40604749 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 34.

The square root of 40604749 is about 6372.1855748244. The cubic root of 40604749 is about 343.7100862087.

The spelling of 40604749 in words is "forty million, six hundred four thousand, seven hundred forty-nine".