1284268 has 12 divisors (see below), whose sum is σ = 2320192. Its totient is φ = 621360.

The previous prime is 1284263. The next prime is 1284271. The reversal of 1284268 is 8624821.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1284263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055 + ... + 5302.

2^1284268 is an apocalyptic number.

It is an amenable number.

1284268 is a deficient number, since it is larger than the sum of its proper divisors (1035924).

1284268 is a wasteful number, since it uses less digits than its factorization.

1284268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392 (or 10390 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 1284268 is about 1133.2554875226. The cubic root of 1284268 is about 108.6972492658.

The spelling of 1284268 in words is "one million, two hundred eighty-four thousand, two hundred sixty-eight".