1985528 has 16 divisors (see below), whose sum is σ = 3740280. Its totient is φ = 988128.

The previous prime is 1985513. The next prime is 1985537. The reversal of 1985528 is 8255891.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1985491 and 1985500.

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, 1826 + ... + 2702.

2^1985528 is an apocalyptic number.

It is an amenable number.

1985528 is a deficient number, since it is larger than the sum of its proper divisors (1754752).

1985528 is a wasteful number, since it uses less digits than its factorization.

1985528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1162 counting only the distinct ones).

The product of its digits is 28800, while the sum is 38.

The square root of 1985528 is about 1409.0876480901. The cubic root of 1985528 is about 125.6874760815.

The spelling of 1985528 in words is "one million, nine hundred eighty-five thousand, five hundred twenty-eight".