1966128 has 20 divisors (see below), whose sum is σ = 5079288. Its totient is φ = 655360.

The previous prime is 1966127. The next prime is 1966163. The reversal of 1966128 is 8216691.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1966123) 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, 20433 + ... + 20528.

2^1966128 is an apocalyptic number.

It is an amenable number.

1966128 is an abundant number, since it is smaller than the sum of its proper divisors (3113160).

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

1966128 is a wasteful number, since it uses less digits than its factorization.

1966128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40972 (or 40966 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 1966128 is about 1402.1868634387. The cubic root of 1966128 is about 125.2767840059.

The spelling of 1966128 in words is "one million, nine hundred sixty-six thousand, one hundred twenty-eight".