990351336 has 64 divisors (see below), whose sum is σ = 2674526400. Its totient is φ = 303787008.

The previous prime is 990351311. The next prime is 990351379. The reversal of 990351336 is 633153099.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 990351294 and 990351303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100435 + ... + 109853.

It is an arithmetic number, because the mean of its divisors is an integer number (41789475).

Almost surely, 2^990351336 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 990351336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337263200).

990351336 is an abundant number, since it is smaller than the sum of its proper divisors (1684175064).

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

990351336 is a wasteful number, since it uses less digits than its factorization.

990351336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9778 (or 9774 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 39.

The square root of 990351336 is about 31469.8480453910. The cubic root of 990351336 is about 996.7733787797.

The spelling of 990351336 in words is "nine hundred ninety million, three hundred fifty-one thousand, three hundred thirty-six".