267428 has 12 divisors (see below), whose sum is σ = 534912. Its totient is φ = 114600.

The previous prime is 267419. The next prime is 267431. The reversal of 267428 is 824762.

267428 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 267428.

It is an unprimeable number.

267428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4748 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (44576).

2²⁶⁷⁴²⁸ is an apocalyptic number.

267428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

267428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

267428 is a wasteful number, since it uses less digits than its factorization.

267428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562 (or 9560 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 267428 is about 517.1344119279. The cubic root of 267428 is about 64.4271557093.

The spelling of 267428 in words is "two hundred sixty-seven thousand, four hundred twenty-eight".