421303866 has 16 divisors (see below), whose sum is σ = 843989664. Its totient is φ = 140204304.

The previous prime is 421303859. The next prime is 421303871. The reversal of 421303866 is 668303124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53596 + ... + 60951.

It is an arithmetic number, because the mean of its divisors is an integer number (52749354).

Almost surely, 2^421303866 is an apocalyptic number.

421303866 is an abundant number, since it is smaller than the sum of its proper divisors (422685798).

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

421303866 is a wasteful number, since it uses less digits than its factorization.

421303866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115165.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 421303866 is about 20525.6879543659. The cubic root of 421303866 is about 749.6613973762.

The spelling of 421303866 in words is "four hundred twenty-one million, three hundred three thousand, eight hundred sixty-six".