421668876 has 12 divisors (see below), whose sum is σ = 983894072. Its totient is φ = 140556288.

The previous prime is 421668869. The next prime is 421668883. The reversal of 421668876 is 678866124.

It is an interprime number because it is at equal distance from previous prime (421668869) and next prime (421668883).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17569525 + ... + 17569548.

Almost surely, 2^421668876 is an apocalyptic number.

It is an amenable number.

421668876 is an abundant number, since it is smaller than the sum of its proper divisors (562225196).

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

421668876 is a wasteful number, since it uses less digits than its factorization.

421668876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35139080 (or 35139078 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 421668876 is about 20534.5775705272. The cubic root of 421668876 is about 749.8778325457.

The spelling of 421668876 in words is "four hundred twenty-one million, six hundred sixty-eight thousand, eight hundred seventy-six".