990606000 has 160 divisors (see below), whose sum is σ = 3225650688. Its totient is φ = 261523200.

The previous prime is 990605999. The next prime is 990606013. The reversal of 990606000 is 606099.

990606000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641229 + ... + 642771.

Almost surely, 2^990606000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990606000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612825344).

990606000 is an abundant number, since it is smaller than the sum of its proper divisors (2235044688).

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

990606000 is a wasteful number, since it uses less digits than its factorization.

990606000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 990606000 is about 31473.8939440292. The cubic root of 990606000 is about 996.8588099230.

The spelling of 990606000 in words is "nine hundred ninety million, six hundred six thousand".