421272 has 24 divisors (see below), whose sum is σ = 1141140. Its totient is φ = 140400.

The previous prime is 421241. The next prime is 421273. The reversal of 421272 is 272124.

421272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2854 + ... + 2997.

2⁴²¹²⁷² is an apocalyptic number.

It is an amenable number.

421272 is an abundant number, since it is smaller than the sum of its proper divisors (719868).

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

421272 is a wasteful number, since it uses less digits than its factorization.

421272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863 (or 5856 counting only the distinct ones).

The product of its digits is 224, while the sum is 18.

The square root of 421272 is about 649.0546972328. The cubic root of 421272 is about 74.9642496282.

Adding to 421272 its reverse (272124), we get a palindrome (693396).

The spelling of 421272 in words is "four hundred twenty-one thousand, two hundred seventy-two", and thus it is an iban number.