990606736 has 60 divisors (see below), whose sum is σ = 2304733440. Its totient is φ = 410840640.

The previous prime is 990606719. The next prime is 990606751. The reversal of 990606736 is 637606099.

990606736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3925 + ... + 44683.

It is an arithmetic number, because the mean of its divisors is an integer number (38412224).

Almost surely, 2^990606736 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 990606736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152366720).

990606736 is an abundant number, since it is smaller than the sum of its proper divisors (1314126704).

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

990606736 is a wasteful number, since it uses less digits than its factorization.

990606736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40812 (or 40799 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 990606736 is about 31473.9056362568. The cubic root of 990606736 is about 996.8590568049.

The spelling of 990606736 in words is "nine hundred ninety million, six hundred six thousand, seven hundred thirty-six".