40799569 has 2 divisors, whose sum is σ = 40799570. Its totient is φ = 40799568.

The previous prime is 40799527. The next prime is 40799573. The reversal of 40799569 is 96599704.

40799569 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., 30636225 + 10163344 = 5535^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 40799569 - 2¹⁹ = 40275281 is a prime.

It is a super-2 number, since 2×40799569² = 3329209661171522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40799509) 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, 20399784 + 20399785.

It is an arithmetic number, because the mean of its divisors is an integer number (20399785).

Almost surely, 2^40799569 is an apocalyptic number.

It is an amenable number.

40799569 is a deficient number, since it is larger than the sum of its proper divisors (1).

40799569 is an equidigital number, since it uses as much as digits as its factorization.

40799569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 40799569 is about 6387.4540311457. The cubic root of 40799569 is about 344.2589119178.

The spelling of 40799569 in words is "forty million, seven hundred ninety-nine thousand, five hundred sixty-nine".