1989824 has 14 divisors (see below), whose sum is σ = 3948684. Its totient is φ = 994880.

The previous prime is 1989811. The next prime is 1989847. The reversal of 1989824 is 4289891.

1989824 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15482 + ... + 15609.

2^1989824 is an apocalyptic number.

It is an amenable number.

1989824 is a deficient number, since it is larger than the sum of its proper divisors (1958860).

1989824 is an equidigital number, since it uses as much as digits as its factorization.

1989824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31103 (or 31093 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 1989824 is about 1410.6112150412. The cubic root of 1989824 is about 125.7780589458.

The spelling of 1989824 in words is "one million, nine hundred eighty-nine thousand, eight hundred twenty-four".