40635966 has 32 divisors (see below), whose sum is σ = 93074688. Its totient is φ = 11586240.

The previous prime is 40635949. The next prime is 40635971. The reversal of 40635966 is 66953604.

It is a happy number.

40635966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 33466 + ... + 34658.

It is an arithmetic number, because the mean of its divisors is an integer number (2908584).

Almost surely, 2^40635966 is an apocalyptic number.

40635966 is an abundant number, since it is smaller than the sum of its proper divisors (52438722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40635966 is a wasteful number, since it uses less digits than its factorization.

40635966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 40635966 is about 6374.6345777621. The cubic root of 40635966 is about 343.7981452785.

The spelling of 40635966 in words is "forty million, six hundred thirty-five thousand, nine hundred sixty-six".