40590866 has 8 divisors (see below), whose sum is σ = 64467900. Its totient is φ = 19101568.

The previous prime is 40590857. The next prime is 40590871. The reversal of 40590866 is 66809504.

40590866 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 2 ways, for example, as 40589641 + 1225 = 6371^2 + 35^2 .

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 596891 + ... + 596958.

Almost surely, 2^40590866 is an apocalyptic number.

40590866 is a deficient number, since it is larger than the sum of its proper divisors (23877034).

40590866 is a wasteful number, since it uses less digits than its factorization.

40590866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193868.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 40590866 is about 6371.0961380284. The cubic root of 40590866 is about 343.6709095838.

The spelling of 40590866 in words is "forty million, five hundred ninety thousand, eight hundred sixty-six".