2021765334 has 64 divisors (see below), whose sum is σ = 4316509440. Its totient is φ = 630241920.

The previous prime is 2021765329. The next prime is 2021765371. The reversal of 2021765334 is 4335671202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2021765295 and 2021765304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709717 + ... + 712559.

It is an arithmetic number, because the mean of its divisors is an integer number (67445460).

Almost surely, 2^2021765334 is an apocalyptic number.

2021765334 is an abundant number, since it is smaller than the sum of its proper divisors (2294744106).

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

2021765334 is a wasteful number, since it uses less digits than its factorization.

2021765334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 2021765334 is about 44964.0449025663. The cubic root of 2021765334 is about 1264.4750036531.

The spelling of 2021765334 in words is "two billion, twenty-one million, seven hundred sixty-five thousand, three hundred thirty-four".