990968384 has 28 divisors (see below), whose sum is σ = 2247375744. Its totient is φ = 424700544.

The previous prime is 990968359. The next prime is 990968387. The reversal of 990968384 is 483869099.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (990968387) by changing a digit.

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, 1105544 + ... + 1106439.

Almost surely, 2^990968384 is an apocalyptic number.

It is an amenable number.

990968384 is an abundant number, since it is smaller than the sum of its proper divisors (1256407360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990968384 is a wasteful number, since it uses less digits than its factorization.

990968384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212002 (or 2211992 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 990968384 is about 31479.6503157198. The cubic root of 990968384 is about 996.9803522387.

The spelling of 990968384 in words is "nine hundred ninety million, nine hundred sixty-eight thousand, three hundred eighty-four".