421167668 has 24 divisors (see below), whose sum is σ = 753389280. Its totient is φ = 205953120.

The previous prime is 421167653. The next prime is 421167683. The reversal of 421167668 is 866761124.

It is an interprime number because it is at equal distance from previous prime (421167653) and next prime (421167683).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38855 + ... + 48497.

It is an arithmetic number, because the mean of its divisors is an integer number (31391220).

Almost surely, 2^421167668 is an apocalyptic number.

It is an amenable number.

421167668 is a deficient number, since it is larger than the sum of its proper divisors (332221612).

421167668 is a wasteful number, since it uses less digits than its factorization.

421167668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887 (or 9885 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 421167668 is about 20522.3699411155. The cubic root of 421167668 is about 749.5806058180.

The spelling of 421167668 in words is "four hundred twenty-one million, one hundred sixty-seven thousand, six hundred sixty-eight".