1284676484 has 72 divisors (see below), whose sum is σ = 2821069440. Its totient is φ = 501126912.

The previous prime is 1284676403. The next prime is 1284676511. The reversal of 1284676484 is 4846764821.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343577 + ... + 347295.

It is an arithmetic number, because the mean of its divisors is an integer number (39181520).

Almost surely, 2^1284676484 is an apocalyptic number.

1284676484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1284676484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410534720).

1284676484 is an abundant number, since it is smaller than the sum of its proper divisors (1536392956).

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

1284676484 is a wasteful number, since it uses less digits than its factorization.

1284676484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829 (or 3814 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 50.

The square root of 1284676484 is about 35842.3839050920. The cubic root of 1284676484 is about 1087.0877240077.

The spelling of 1284676484 in words is "one billion, two hundred eighty-four million, six hundred seventy-six thousand, four hundred eighty-four".