990835216 has 40 divisors (see below), whose sum is σ = 2289389184. Its totient is φ = 406179840.

The previous prime is 990835211. The next prime is 990835217. The reversal of 990835216 is 612538099.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (990835211) 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, 189745 + ... + 194896.

Almost surely, 2^990835216 is an apocalyptic number.

It is an amenable number.

990835216 is an abundant number, since it is smaller than the sum of its proper divisors (1298553968).

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

990835216 is a wasteful number, since it uses less digits than its factorization.

990835216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384679 (or 384673 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 990835216 is about 31477.5351004490. The cubic root of 990835216 is about 996.9356916053.

The spelling of 990835216 in words is "nine hundred ninety million, eight hundred thirty-five thousand, two hundred sixteen".