421068566 has 8 divisors (see below), whose sum is σ = 632759160. Its totient is φ = 210148848.

The previous prime is 421068559. The next prime is 421068569. The reversal of 421068566 is 665860124.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421068569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191351 + ... + 193538.

It is an arithmetic number, because the mean of its divisors is an integer number (79094895).

Almost surely, 2^421068566 is an apocalyptic number.

421068566 is a deficient number, since it is larger than the sum of its proper divisors (211690594).

421068566 is a wasteful number, since it uses less digits than its factorization.

421068566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385438.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 421068566 is about 20519.9553118422. The cubic root of 421068566 is about 749.5218083603.

The spelling of 421068566 in words is "four hundred twenty-one million, sixty-eight thousand, five hundred sixty-six".