1999775282 has 18 divisors (see below), whose sum is σ = 3038967423. Its totient is φ = 986954652.

The previous prime is 1999775257. The next prime is 1999775299. The reversal of 1999775282 is 2825779991.

It can be written as a sum of positive squares in only one way, i.e., 999887641 + 999887641 = 31621^2 + 31621^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31621.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6513773 + ... + 6514079.

Almost surely, 2^1999775282 is an apocalyptic number.

1999775282 is a deficient number, since it is larger than the sum of its proper divisors (1039192141).

1999775282 is an frugal number, since it uses more digits than its factorization.

1999775282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 412 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 59.

The square root of 1999775282 is about 44718.8470557996. The cubic root of 1999775282 is about 1259.8738603044.

The spelling of 1999775282 in words is "one billion, nine hundred ninety-nine million, seven hundred seventy-five thousand, two hundred eighty-two".