990916608 has 104 divisors (see below), whose sum is σ = 2882707776. Its totient is φ = 300236800.

The previous prime is 990916601. The next prime is 990916637. The reversal of 990916608 is 806619099.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (990916601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131503 + ... + 138833.

It is an arithmetic number, because the mean of its divisors is an integer number (27718344).

Almost surely, 2^990916608 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 990916608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441353888).

990916608 is an abundant number, since it is smaller than the sum of its proper divisors (1891791168).

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

990916608 is a wasteful number, since it uses less digits than its factorization.

990916608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369 (or 7347 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 990916608 is about 31478.8279324374. The cubic root of 990916608 is about 996.9629885654.

The spelling of 990916608 in words is "nine hundred ninety million, nine hundred sixteen thousand, six hundred eight".