421041866 has 16 divisors (see below), whose sum is σ = 722091456. Its totient is φ = 180370176.

The previous prime is 421041799. The next prime is 421041883. The reversal of 421041866 is 668140124.

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 7 ways as a sum of consecutive naturals, for example, 39125 + ... + 48711.

It is an arithmetic number, because the mean of its divisors is an integer number (45130716).

Almost surely, 2^421041866 is an apocalyptic number.

421041866 is a deficient number, since it is larger than the sum of its proper divisors (301049590).

421041866 is a wasteful number, since it uses less digits than its factorization.

421041866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12733.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 421041866 is about 20519.3047153163. The cubic root of 421041866 is about 749.5059656078.

The spelling of 421041866 in words is "four hundred twenty-one million, forty-one thousand, eight hundred sixty-six".