996992128 has 32 divisors (see below), whose sum is σ = 2166761520. Its totient is φ = 453177600.

The previous prime is 996992123. The next prime is 996992141. The reversal of 996992128 is 821299699.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (996992123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352638 + ... + 355453.

Almost surely, 2^996992128 is an apocalyptic number.

It is an amenable number.

996992128 is an abundant number, since it is smaller than the sum of its proper divisors (1169769392).

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

996992128 is a wasteful number, since it uses less digits than its factorization.

996992128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708116 (or 708104 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 55.

The square root of 996992128 is about 31575.1821530771. The cubic root of 996992128 is about 998.9963690619.

The spelling of 996992128 in words is "nine hundred ninety-six million, nine hundred ninety-two thousand, one hundred twenty-eight".