1284920076 has 24 divisors (see below), whose sum is σ = 3270705984. Its totient is φ = 389369680.

The previous prime is 1284920057. The next prime is 1284920099. The reversal of 1284920076 is 6700294821.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 4866990 + ... + 4867253.

It is an arithmetic number, because the mean of its divisors is an integer number (136279416).

Almost surely, 2^1284920076 is an apocalyptic number.

It is an amenable number.

1284920076 is an abundant number, since it is smaller than the sum of its proper divisors (1985785908).

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

1284920076 is a wasteful number, since it uses less digits than its factorization.

1284920076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734261 (or 9734259 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1284920076 is about 35845.7818438934. The cubic root of 1284920076 is about 1087.1564285003.

The spelling of 1284920076 in words is "one billion, two hundred eighty-four million, nine hundred twenty thousand, seventy-six".