40825865 has 8 divisors (see below), whose sum is σ = 49138440. Its totient is φ = 32562432.

The previous prime is 40825849. The next prime is 40825909. The reversal of 40825865 is 56852804.

40825865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 19321 + 40806544 = 139^2 + 6388^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40825865 - 2⁴ = 40825849 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10430 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (6142305).

Almost surely, 2^40825865 is an apocalyptic number.

It is an amenable number.

40825865 is a deficient number, since it is larger than the sum of its proper divisors (8312575).

40825865 is a wasteful number, since it uses less digits than its factorization.

40825865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24571.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 40825865 is about 6389.5121096998. The cubic root of 40825865 is about 344.3328562299.

The spelling of 40825865 in words is "forty million, eight hundred twenty-five thousand, eight hundred sixty-five".