1999960828 has 12 divisors (see below), whose sum is σ = 3522225112. Its totient is φ = 993610800.

The previous prime is 1999960817. The next prime is 1999960829. The reversal of 1999960828 is 8280699991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999960829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1591698 + ... + 1592953.

Almost surely, 2^1999960828 is an apocalyptic number.

It is an amenable number.

1999960828 is a deficient number, since it is larger than the sum of its proper divisors (1522264284).

1999960828 is a wasteful number, since it uses less digits than its factorization.

1999960828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184812 (or 3184810 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 61.

The square root of 1999960828 is about 44720.9215915772. The cubic root of 1999960828 is about 1259.9128242366.

The spelling of 1999960828 in words is "one billion, nine hundred ninety-nine million, nine hundred sixty thousand, eight hundred twenty-eight".