990048768 has 40 divisors (see below), whose sum is σ = 2637555888. Its totient is φ = 330015744.

The previous prime is 990048649. The next prime is 990048769. The reversal of 990048768 is 867840099.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 990048768.

It is not an unprimeable number, because it can be changed into a prime (990048769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320746 + ... + 323817.

Almost surely, 2^990048768 is an apocalyptic number.

It is an amenable number.

990048768 is an abundant number, since it is smaller than the sum of its proper divisors (1647507120).

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

990048768 is an equidigital number, since it uses as much as digits as its factorization.

990048768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644584 (or 644568 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 990048768 is about 31465.0404099534. The cubic root of 990048768 is about 996.6718584284.

The spelling of 990048768 in words is "nine hundred ninety million, forty-eight thousand, seven hundred sixty-eight".