1284266 has 4 divisors (see below), whose sum is σ = 1926402. Its totient is φ = 642132.

The previous prime is 1284263. The next prime is 1284271. The reversal of 1284266 is 6624821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 758641 + 525625 = 871^2 + 725^2 .

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 as a sum of consecutive naturals, namely, 321065 + ... + 321068.

2^1284266 is an apocalyptic number.

1284266 is a deficient number, since it is larger than the sum of its proper divisors (642136).

1284266 is an equidigital number, since it uses as much as digits as its factorization.

1284266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642135.

The product of its digits is 4608, while the sum is 29.

The square root of 1284266 is about 1133.2546051087. The cubic root of 1284266 is about 108.6971928408.

The spelling of 1284266 in words is "one million, two hundred eighty-four thousand, two hundred sixty-six".