999530012 has 48 divisors (see below), whose sum is σ = 1968755712. Its totient is φ = 440959680.

The previous prime is 999530003. The next prime is 999530023. The reversal of 999530012 is 210035999.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100337 + ... + 109847.

It is an arithmetic number, because the mean of its divisors is an integer number (41015744).

Almost surely, 2^999530012 is an apocalyptic number.

It is an amenable number.

999530012 is a deficient number, since it is larger than the sum of its proper divisors (969225700).

999530012 is a wasteful number, since it uses less digits than its factorization.

999530012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9618 (or 9616 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 999530012 is about 31615.3445655745. The cubic root of 999530012 is about 999.8433127837.

The spelling of 999530012 in words is "nine hundred ninety-nine million, five hundred thirty thousand, twelve".