2821011930 has 48 divisors (see below), whose sum is σ = 8001418464. Its totient is φ = 683881440.

The previous prime is 2821011913. The next prime is 2821011931. The reversal of 2821011930 is 391101282.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2821011894 and 2821011903.

It is not an unprimeable number, because it can be changed into a prime (2821011931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1423764 + ... + 1425743.

It is an arithmetic number, because the mean of its divisors is an integer number (166696218).

Almost surely, 2^2821011930 is an apocalyptic number.

2821011930 is an abundant number, since it is smaller than the sum of its proper divisors (5180406534).

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

2821011930 is a wasteful number, since it uses less digits than its factorization.

2821011930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849531 (or 2849528 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2821011930 is about 53113.1992069768. The cubic root of 2821011930 is about 1412.9766149967.

The spelling of 2821011930 in words is "two billion, eight hundred twenty-one million, eleven thousand, nine hundred thirty".