2021730992 has 20 divisors (see below), whose sum is σ = 4012644216. Its totient is φ = 986209920.

The previous prime is 2021730947. The next prime is 2021731007. The reversal of 2021730992 is 2990371202.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540298 + ... + 1541609.

Almost surely, 2^2021730992 is an apocalyptic number.

It is an amenable number.

2021730992 is a deficient number, since it is larger than the sum of its proper divisors (1990913224).

2021730992 is a wasteful number, since it uses less digits than its factorization.

2021730992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081956 (or 3081950 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2021730992 is about 44963.6630180416. The cubic root of 2021730992 is about 1264.4678440938.

The spelling of 2021730992 in words is "two billion, twenty-one million, seven hundred thirty thousand, nine hundred ninety-two".