1984128 has 32 divisors (see below), whose sum is σ = 5271360. Its totient is φ = 661248.

The previous prime is 1984123. The next prime is 1984133. The reversal of 1984128 is 8214891.

It is an interprime number because it is at equal distance from previous prime (1984123) and next prime (1984133).

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

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (1984123) 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, 2200 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (164730).

2^1984128 is an apocalyptic number.

It is an amenable number.

1984128 is an abundant number, since it is smaller than the sum of its proper divisors (3287232).

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

1984128 is an equidigital number, since it uses as much as digits as its factorization.

1984128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184 (or 5172 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 1984128 is about 1408.5907851466. The cubic root of 1984128 is about 125.6579283005.

It can be divided in two parts, 1984 and 128, that added together give a palindrome (2112).

The spelling of 1984128 in words is "one million, nine hundred eighty-four thousand, one hundred twenty-eight".