268428 has 12 divisors (see below), whose sum is σ = 626360. Its totient is φ = 89472.

The previous prime is 268403. The next prime is 268439. The reversal of 268428 is 824862.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 268395 and 268404.

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, 11173 + ... + 11196.

2²⁶⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

268428 is an abundant number, since it is smaller than the sum of its proper divisors (357932).

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

268428 is a wasteful number, since it uses less digits than its factorization.

268428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22376 (or 22374 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 268428 is about 518.1003763751. The cubic root of 268428 is about 64.5073604965.

It can be divided in two parts, 268 and 428, that added together give a palindrome (696).

The spelling of 268428 in words is "two hundred sixty-eight thousand, four hundred twenty-eight".