1285833248 has 24 divisors (see below), whose sum is σ = 2893125312. Its totient is φ = 551071296.

The previous prime is 1285833229. The next prime is 1285833253. The reversal of 1285833248 is 8423385821.

It is a junction number, because it is equal to n+sod(n) for n = 1285833199 and 1285833208.

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, 2869940 + ... + 2870387.

It is an arithmetic number, because the mean of its divisors is an integer number (120546888).

Almost surely, 2^1285833248 is an apocalyptic number.

It is an amenable number.

1285833248 is an abundant number, since it is smaller than the sum of its proper divisors (1607292064).

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

1285833248 is an equidigital number, since it uses as much as digits as its factorization.

1285833248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740344 (or 5740336 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 1285833248 is about 35858.5170914805. The cubic root of 1285833248 is about 1087.4139090346.

The spelling of 1285833248 in words is "one billion, two hundred eighty-five million, eight hundred thirty-three thousand, two hundred forty-eight".