421828460 has 24 divisors (see below), whose sum is σ = 886515840. Its totient is φ = 168602624.

The previous prime is 421828447. The next prime is 421828471. The reversal of 421828460 is 64828124.

It is a self number, because there is not a number n which added to its sum of digits gives 421828460.

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, 21452 + ... + 36108.

It is an arithmetic number, because the mean of its divisors is an integer number (36938160).

Almost surely, 2^421828460 is an apocalyptic number.

It is an amenable number.

421828460 is an abundant number, since it is smaller than the sum of its proper divisors (464687380).

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

421828460 is a wasteful number, since it uses less digits than its factorization.

421828460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16105 (or 16103 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 421828460 is about 20538.4629415154. The cubic root of 421828460 is about 749.9724197265.

The spelling of 421828460 in words is "four hundred twenty-one million, eight hundred twenty-eight thousand, four hundred sixty".