9990446630 has 16 divisors (see below), whose sum is σ = 18421409664. Its totient is φ = 3898710720.

The previous prime is 9990446623. The next prime is 9990446633. The reversal of 9990446630 is 366440999.

It is a happy number.

9990446630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×9990446630³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990446633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12183062 + ... + 12183881.

It is an arithmetic number, because the mean of its divisors is an integer number (1151338104).

Almost surely, 2^9990446630 is an apocalyptic number.

9990446630 is a deficient number, since it is larger than the sum of its proper divisors (8430963034).

9990446630 is a wasteful number, since it uses less digits than its factorization.

9990446630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24366991.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 9990446630 is about 99952.2217361875. The cubic root of 9990446630 is about 2153.7484010486.

The spelling of 9990446630 in words is "nine billion, nine hundred ninety million, four hundred forty-six thousand, six hundred thirty".