1999274066 has 8 divisors (see below), whose sum is σ = 3001658124. Its totient is φ = 998721360.

The previous prime is 1999274029. The next prime is 1999274117. The reversal of 1999274066 is 6604729991.

It can be written as a sum of positive squares in 2 ways, for example, as 1947015625 + 52258441 = 44125^2 + 7229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1999273999 and 1999274017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455105 + ... + 459476.

Almost surely, 2^1999274066 is an apocalyptic number.

1999274066 is a deficient number, since it is larger than the sum of its proper divisors (1002384058).

1999274066 is a wasteful number, since it uses less digits than its factorization.

1999274066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915676.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 1999274066 is about 44713.2426245290. The cubic root of 1999274066 is about 1259.7685948601.

The spelling of 1999274066 in words is "one billion, nine hundred ninety-nine million, two hundred seventy-four thousand, sixty-six".