421487166 has 32 divisors (see below), whose sum is σ = 850601088. Its totient is φ = 139230560.

The previous prime is 421487159. The next prime is 421487201. The reversal of 421487166 is 661784124.

It is a super-3 number, since 3×421487166³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509245 + ... + 510071.

It is an arithmetic number, because the mean of its divisors is an integer number (26581284).

Almost surely, 2^421487166 is an apocalyptic number.

421487166 is an abundant number, since it is smaller than the sum of its proper divisors (429113922).

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

421487166 is a wasteful number, since it uses less digits than its factorization.

421487166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496.

The product of its digits is 64512, while the sum is 39.

The square root of 421487166 is about 20530.1526053753. The cubic root of 421487166 is about 749.7701019808.

The spelling of 421487166 in words is "four hundred twenty-one million, four hundred eighty-seven thousand, one hundred sixty-six".