1989932 has 12 divisors (see below), whose sum is σ = 3979920. Its totient is φ = 852816.

The previous prime is 1989919. The next prime is 1989947. The reversal of 1989932 is 2399891.

1989932 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1989932.

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, 35507 + ... + 35562.

It is an arithmetic number, because the mean of its divisors is an integer number (331660).

2^1989932 is an apocalyptic number.

It is an amenable number.

1989932 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1989932 is a wasteful number, since it uses less digits than its factorization.

1989932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71080 (or 71078 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 1989932 is about 1410.6494957997. The cubic root of 1989932 is about 125.7803344879.

Subtracting from 1989932 its sum of digits (41), we obtain a palindrome (1989891).

The spelling of 1989932 in words is "one million, nine hundred eighty-nine thousand, nine hundred thirty-two".