421278272 has 28 divisors (see below), whose sum is σ = 844263996. Its totient is φ = 208550400.

The previous prime is 421278259. The next prime is 421278283. The reversal of 421278272 is 272872124.

It can be written as a sum of positive squares in 2 ways, for example, as 174662656 + 246615616 = 13216^2 + 15704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26123 + ... + 39050.

Almost surely, 2^421278272 is an apocalyptic number.

It is an amenable number.

421278272 is an abundant number, since it is smaller than the sum of its proper divisors (422985724).

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

421278272 is a wasteful number, since it uses less digits than its factorization.

421278272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65286 (or 65276 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 421278272 is about 20525.0644822373. The cubic root of 421278272 is about 749.6462165500.

The spelling of 421278272 in words is "four hundred twenty-one million, two hundred seventy-eight thousand, two hundred seventy-two".