1282841256 has 64 divisors (see below), whose sum is σ = 3373125120. Its totient is φ = 405999360.

The previous prime is 1282841237. The next prime is 1282841257. The reversal of 1282841256 is 6521482821.

It is a happy number.

It is a super-3 number, since 3×1282841256³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1282841257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23166 + ... + 55698.

It is an arithmetic number, because the mean of its divisors is an integer number (52705080).

Almost surely, 2^1282841256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1282841256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686562560).

1282841256 is an abundant number, since it is smaller than the sum of its proper divisors (2090283864).

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

1282841256 is a wasteful number, since it uses less digits than its factorization.

1282841256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32626 (or 32622 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 1282841256 is about 35816.7733890143. The cubic root of 1282841256 is about 1086.5698232957.

The spelling of 1282841256 in words is "one billion, two hundred eighty-two million, eight hundred forty-one thousand, two hundred fifty-six".