421457271 has 8 divisors (see below), whose sum is σ = 567195264. Its totient is φ = 278345400.

The previous prime is 421457227. The next prime is 421457273. The reversal of 421457271 is 172754124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421457271 - 2¹⁰ = 421456247 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421457273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656155 + ... + 656796.

It is an arithmetic number, because the mean of its divisors is an integer number (70899408).

Almost surely, 2^421457271 is an apocalyptic number.

421457271 is a deficient number, since it is larger than the sum of its proper divisors (145737993).

421457271 is a wasteful number, since it uses less digits than its factorization.

421457271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313061.

The product of its digits is 15680, while the sum is 33.

The square root of 421457271 is about 20529.4245170195. The cubic root of 421457271 is about 749.7523751405.

The spelling of 421457271 in words is "four hundred twenty-one million, four hundred fifty-seven thousand, two hundred seventy-one".