1001984128 has 32 divisors (see below), whose sum is σ = 1997568000. Its totient is φ = 500633856.

The previous prime is 1001984119. The next prime is 1001984143. The reversal of 1001984128 is 8214891001.

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

It is a junction number, because it is equal to n+sod(n) for n = 1001984093 and 1001984102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346593 + ... + 349471.

It is an arithmetic number, because the mean of its divisors is an integer number (62424000).

Almost surely, 2^1001984128 is an apocalyptic number.

It is an amenable number.

1001984128 is a deficient number, since it is larger than the sum of its proper divisors (995583872).

1001984128 is an equidigital number, since it uses as much as digits as its factorization.

1001984128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612 (or 5600 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 1001984128 is about 31654.1328739234. The cubic root of 1001984128 is about 1000.6609390633.

The spelling of 1001984128 in words is "one billion, one million, nine hundred eighty-four thousand, one hundred twenty-eight".