421477166 has 32 divisors (see below), whose sum is σ = 702535680. Its totient is φ = 188042400.

The previous prime is 421477163. The next prime is 421477169. The reversal of 421477166 is 661774124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421477163) and next prime (421477169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421477163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341771 + ... + 343001.

It is an arithmetic number, because the mean of its divisors is an integer number (21954240).

Almost surely, 2^421477166 is an apocalyptic number.

421477166 is a deficient number, since it is larger than the sum of its proper divisors (281058514).

421477166 is a wasteful number, since it uses less digits than its factorization.

421477166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520.

The product of its digits is 56448, while the sum is 38.

The square root of 421477166 is about 20529.9090597109. The cubic root of 421477166 is about 749.7641723734.

The spelling of 421477166 in words is "four hundred twenty-one million, four hundred seventy-seven thousand, one hundred sixty-six".