1284882258 has 64 divisors (see below), whose sum is σ = 3079296000. Its totient is φ = 352820160.

The previous prime is 1284882251. The next prime is 1284882283. The reversal of 1284882258 is 8522884821.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1284882251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6568 + ... + 51116.

It is an arithmetic number, because the mean of its divisors is an integer number (48114000).

Almost surely, 2^1284882258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1284882258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539648000).

1284882258 is an abundant number, since it is smaller than the sum of its proper divisors (1794413742).

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

1284882258 is a wasteful number, since it uses less digits than its factorization.

1284882258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44607.

The product of its digits is 655360, while the sum is 48.

The square root of 1284882258 is about 35845.2543302457. The cubic root of 1284882258 is about 1087.1457626008.

The spelling of 1284882258 in words is "one billion, two hundred eighty-four million, eight hundred eighty-two thousand, two hundred fifty-eight".