1989532 has 12 divisors (see below), whose sum is σ = 3492216. Its totient is φ = 991760.

The previous prime is 1989517. The next prime is 1989551. The reversal of 1989532 is 2359891.

It is a junction number, because it is equal to n+sod(n) for n = 1989491 and 1989500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458 + ... + 2470.

It is an arithmetic number, because the mean of its divisors is an integer number (291018).

2^1989532 is an apocalyptic number.

It is an amenable number.

1989532 is a deficient number, since it is larger than the sum of its proper divisors (1502684).

1989532 is a wasteful number, since it uses less digits than its factorization.

1989532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1506 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 1989532 is about 1410.5077100108. The cubic root of 1989532 is about 125.7719061421.

It can be divided in two parts, 198 and 9532, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 1989532 in words is "one million, nine hundred eighty-nine thousand, five hundred thirty-two".