999999268 has 6 divisors (see below), whose sum is σ = 1749998726. Its totient is φ = 499999632.

The previous prime is 999999229. The next prime is 999999323. The reversal of 999999268 is 862999999.

It can be written as a sum of positive squares in only one way, i.e., 941139684 + 58859584 = 30678^2 + 7672^2 .

It is a super-3 number, since 3×999999268³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999999197 and 999999206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124999905 + ... + 124999912.

Almost surely, 2^999999268 is an apocalyptic number.

It is an amenable number.

999999268 is a deficient number, since it is larger than the sum of its proper divisors (749999458).

999999268 is a wasteful number, since it uses less digits than its factorization.

999999268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249999821 (or 249999819 counting only the distinct ones).

The product of its digits is 51018336, while the sum is 70.

The square root of 999999268 is about 31622.7650277454. The cubic root of 999999268 is about 999.9997559999. Note that the first 3 decimals are identical.

The spelling of 999999268 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, two hundred sixty-eight".