1284408012 has 24 divisors (see below), whose sum is σ = 3017070000. Its totient is φ = 425262016.

The previous prime is 1284407933. The next prime is 1284408061. The reversal of 1284408012 is 2108044821.

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 7 ways as a sum of consecutive naturals, for example, 357387 + ... + 360962.

It is an arithmetic number, because the mean of its divisors is an integer number (125711250).

Almost surely, 2^1284408012 is an apocalyptic number.

1284408012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1284408012 is an abundant number, since it is smaller than the sum of its proper divisors (1732661988).

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

1284408012 is a wasteful number, since it uses less digits than its factorization.

1284408012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718505 (or 718503 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1284408012 is about 35838.6385344086. The cubic root of 1284408012 is about 1087.0119921142.

The spelling of 1284408012 in words is "one billion, two hundred eighty-four million, four hundred eight thousand, twelve".