267421 has 16 divisors (see below), whose sum is σ = 350208. Its totient is φ = 198000.

The previous prime is 267419. The next prime is 267431. The reversal of 267421 is 124762.

It is not a de Polignac number, because 267421 - 2¹ = 267419 is a prime.

It is a Duffinian number.

267421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 267392 and 267401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (267401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1696 + ... + 1846.

It is an arithmetic number, because the mean of its divisors is an integer number (21888).

2²⁶⁷⁴²¹ is an apocalyptic number.

It is an amenable number.

267421 is a deficient number, since it is larger than the sum of its proper divisors (82787).

267421 is a wasteful number, since it uses less digits than its factorization.

267421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192.

The product of its digits is 672, while the sum is 22.

The square root of 267421 is about 517.1276438173. The cubic root of 267421 is about 64.4265935717.

It can be divided in two parts, 26 and 7421, that added together give a palindrome (7447).

The spelling of 267421 in words is "two hundred sixty-seven thousand, four hundred twenty-one".