40636049 has 2 divisors, whose sum is σ = 40636050. Its totient is φ = 40636048.

The previous prime is 40636033. The next prime is 40636061. The reversal of 40636049 is 94063604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 18215824 = 4735^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 40636049 - 2⁴ = 40636033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40636019) 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, 20318024 + 20318025.

It is an arithmetic number, because the mean of its divisors is an integer number (20318025).

Almost surely, 2^40636049 is an apocalyptic number.

It is an amenable number.

40636049 is a deficient number, since it is larger than the sum of its proper divisors (1).

40636049 is an equidigital number, since it uses as much as digits as its factorization.

40636049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 40636049 is about 6374.6410879359. The cubic root of 40636049 is about 343.7983793506.

The spelling of 40636049 in words is "forty million, six hundred thirty-six thousand, forty-nine".