1283264 has 14 divisors (see below), whose sum is σ = 2546604. Its totient is φ = 641600.

The previous prime is 1283237. The next prime is 1283297. The reversal of 1283264 is 4623821.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9962 + ... + 10089.

2^1283264 is an apocalyptic number.

It is an amenable number.

1283264 is a deficient number, since it is larger than the sum of its proper divisors (1263340).

1283264 is an equidigital number, since it uses as much as digits as its factorization.

1283264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20063 (or 20053 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1283264 is about 1132.8124293103. The cubic root of 1283264 is about 108.6689165270.

The spelling of 1283264 in words is "one million, two hundred eighty-three thousand, two hundred sixty-four".