1986032328 has 48 divisors (see below), whose sum is σ = 5775709680. Its totient is φ = 567437472.

The previous prime is 1986032297. The next prime is 1986032353. The reversal of 1986032328 is 8232306891.

It is a super-2 number, since 2×1986032328² = 7888648815722199168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1986032328.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 843226 + ... + 845577.

It is an arithmetic number, because the mean of its divisors is an integer number (120327285).

Almost surely, 2^1986032328 is an apocalyptic number.

It is an amenable number.

1986032328 is an abundant number, since it is smaller than the sum of its proper divisors (3789677352).

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

1986032328 is a wasteful number, since it uses less digits than its factorization.

1986032328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688826 (or 1688815 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1986032328 is about 44564.9226185797. The cubic root of 1986032328 is about 1256.9811680234.

The spelling of 1986032328 in words is "one billion, nine hundred eighty-six million, thirty-two thousand, three hundred twenty-eight".