1999286248 has 32 divisors (see below), whose sum is σ = 3958660800. Its totient is φ = 943982208.

The previous prime is 1999286243. The next prime is 1999286249. The reversal of 1999286248 is 8426829991.

It is a junction number, because it is equal to n+sod(n) for n = 1999286192 and 1999286201.

It is not an unprimeable number, because it can be changed into a prime (1999286243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26565 + ... + 68587.

It is an arithmetic number, because the mean of its divisors is an integer number (123708150).

Almost surely, 2^1999286248 is an apocalyptic number.

It is an amenable number.

1999286248 is a deficient number, since it is larger than the sum of its proper divisors (1959374552).

1999286248 is a wasteful number, since it uses less digits than its factorization.

1999286248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42361 (or 42357 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 58.

The square root of 1999286248 is about 44713.3788479466. The cubic root of 1999286248 is about 1259.7711535338.

The spelling of 1999286248 in words is "one billion, nine hundred ninety-nine million, two hundred eighty-six thousand, two hundred forty-eight".