1284648 has 16 divisors (see below), whose sum is σ = 3211680. Its totient is φ = 428208.

The previous prime is 1284641. The next prime is 1284659. The reversal of 1284648 is 8464821.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1284641) 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, 26740 + ... + 26787.

It is an arithmetic number, because the mean of its divisors is an integer number (200730).

2^1284648 is an apocalyptic number.

It is an amenable number.

1284648 is an abundant number, since it is smaller than the sum of its proper divisors (1927032).

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

1284648 is a wasteful number, since it uses less digits than its factorization.

1284648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53536 (or 53532 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 1284648 is about 1133.4231336972. The cubic root of 1284648 is about 108.7079689602.

The spelling of 1284648 in words is "one million, two hundred eighty-four thousand, six hundred forty-eight".