40864866 has 32 divisors (see below), whose sum is σ = 93778560. Its totient is φ = 11629056.

The previous prime is 40864853. The next prime is 40864891. The reversal of 40864866 is 66846804.

40864866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 9490 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (2930580).

Almost surely, 2^40864866 is an apocalyptic number.

40864866 is an abundant number, since it is smaller than the sum of its proper divisors (52913694).

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

40864866 is a wasteful number, since it uses less digits than its factorization.

40864866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 40864866 is about 6392.5633356268. The cubic root of 40864866 is about 344.4424685361.

The spelling of 40864866 in words is "forty million, eight hundred sixty-four thousand, eight hundred sixty-six".