1284874822 has 16 divisors (see below), whose sum is σ = 2402883072. Its totient is φ = 500600520.

The previous prime is 1284874793. The next prime is 1284874847. The reversal of 1284874822 is 2284784821.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 4171518 + ... + 4171825.

It is an arithmetic number, because the mean of its divisors is an integer number (150180192).

Almost surely, 2^1284874822 is an apocalyptic number.

1284874822 is a deficient number, since it is larger than the sum of its proper divisors (1118008250).

1284874822 is a wasteful number, since it uses less digits than its factorization.

1284874822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343363.

The product of its digits is 458752, while the sum is 46.

The square root of 1284874822 is about 35845.1506064628. The cubic root of 1284874822 is about 1087.1436653836.

Subtracting 1284874822 from its reverse (2284784821), we obtain a palindrome (999909999).

The spelling of 1284874822 in words is "one billion, two hundred eighty-four million, eight hundred seventy-four thousand, eight hundred twenty-two".