40808597 has 4 divisors (see below), whose sum is σ = 42215820. Its totient is φ = 39401376.

The previous prime is 40808563. The next prime is 40808611. The reversal of 40808597 is 79580804.

40808597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26977636 + 13830961 = 5194^2 + 3719^2 .

It is a cyclic number.

It is not a de Polignac number, because 40808597 - 2¹² = 40804501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40808297) 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 in 3 ways as a sum of consecutive naturals, for example, 703568 + ... + 703625.

It is an arithmetic number, because the mean of its divisors is an integer number (10553955).

Almost surely, 2^40808597 is an apocalyptic number.

It is an amenable number.

40808597 is a deficient number, since it is larger than the sum of its proper divisors (1407223).

40808597 is a wasteful number, since it uses less digits than its factorization.

40808597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407222.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 40808597 is about 6388.1606899013. The cubic root of 40808597 is about 344.2843022207.

The spelling of 40808597 in words is "forty million, eight hundred eight thousand, five hundred ninety-seven".