2820930940 has 12 divisors (see below), whose sum is σ = 5923955016. Its totient is φ = 1128372368.

The previous prime is 2820930911. The next prime is 2820930943. The reversal of 2820930940 is 490390282.

It is a self number, because there is not a number n which added to its sum of digits gives 2820930940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820930943) 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, 70523254 + ... + 70523293.

It is an arithmetic number, because the mean of its divisors is an integer number (493662918).

Almost surely, 2^2820930940 is an apocalyptic number.

2820930940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820930940 is an abundant number, since it is smaller than the sum of its proper divisors (3103024076).

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

2820930940 is a wasteful number, since it uses less digits than its factorization.

2820930940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141046556 (or 141046554 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2820930940 is about 53112.4367733208. The cubic root of 2820930940 is about 1412.9630928902.

The spelling of 2820930940 in words is "two billion, eight hundred twenty million, nine hundred thirty thousand, nine hundred forty".