1283935916 has 12 divisors (see below), whose sum is σ = 2250211488. Its totient is φ = 641018352.

The previous prime is 1283935901. The next prime is 1283935943. The reversal of 1283935916 is 6195393821.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 234356 + ... + 239771.

It is an arithmetic number, because the mean of its divisors is an integer number (187517624).

Almost surely, 2^1283935916 is an apocalyptic number.

It is an amenable number.

1283935916 is a deficient number, since it is larger than the sum of its proper divisors (966275572).

1283935916 is a wasteful number, since it uses less digits than its factorization.

1283935916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474808 (or 474806 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 1283935916 is about 35832.0515181590. The cubic root of 1283935916 is about 1086.8787953689.

The spelling of 1283935916 in words is "one billion, two hundred eighty-three million, nine hundred thirty-five thousand, nine hundred sixteen".