1999999996 has 12 divisors (see below), whose sum is σ = 3505069960. Its totient is φ = 998551440.

The previous prime is 1999999973. The next prime is 2000000011. The reversal of 1999999996 is 6999999991.

It is a congruent number.

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, 359031 + ... + 364558.

Almost surely, 2^1999999996 is an apocalyptic number.

It is an amenable number.

1999999996 is a deficient number, since it is larger than the sum of its proper divisors (1505069964).

1999999996 is a wasteful number, since it uses less digits than its factorization.

1999999996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724284 (or 724282 counting only the distinct ones).

The product of its digits is 258280326, while the sum is 79.

The square root of 1999999996 is about 44721.3595052744. The cubic root of 1999999996 is about 1259.9210490549.

The spelling of 1999999996 in words is "one billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-six".