1321284 has 24 divisors (see below), whose sum is σ = 3115840. Its totient is φ = 435744.

The previous prime is 1321283. The next prime is 1321289. The reversal of 1321284 is 4821231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321284.

It is not an unprimeable number, because it can be changed into a prime (1321283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 1770.

2^1321284 is an apocalyptic number.

It is an amenable number.

1321284 is an abundant number, since it is smaller than the sum of its proper divisors (1794556).

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

1321284 is a wasteful number, since it uses less digits than its factorization.

1321284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1177 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1321284 is about 1149.4711827619. The cubic root of 1321284 is about 109.7316876616.

The spelling of 1321284 in words is "one million, three hundred twenty-one thousand, two hundred eighty-four".