1284488812 has 12 divisors (see below), whose sum is σ = 2248109640. Its totient is φ = 642171776.

The previous prime is 1284488783. The next prime is 1284488837. The reversal of 1284488812 is 2188844821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50364 + ... + 71452.

It is an arithmetic number, because the mean of its divisors is an integer number (187342470).

Almost surely, 2^1284488812 is an apocalyptic number.

It is an amenable number.

1284488812 is a deficient number, since it is larger than the sum of its proper divisors (963620828).

1284488812 is a wasteful number, since it uses less digits than its factorization.

1284488812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36320 (or 36318 counting only the distinct ones).

The product of its digits is 262144, while the sum is 46.

The square root of 1284488812 is about 35839.7657916455. The cubic root of 1284488812 is about 1087.0347856830.

The spelling of 1284488812 in words is "one billion, two hundred eighty-four million, four hundred eighty-eight thousand, eight hundred twelve".