2820549834 has 48 divisors (see below), whose sum is σ = 6252427584. Its totient is φ = 918691200.

The previous prime is 2820549821. The next prime is 2820549839. The reversal of 2820549834 is 4389450282.

2820549834 is a `hidden beast` number, since 2 + 8 + 20 + 549 + 83 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2820549834.

It is not an unprimeable number, because it can be changed into a prime (2820549839) 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, 134649 + ... + 154179.

It is an arithmetic number, because the mean of its divisors is an integer number (130258908).

Almost surely, 2^2820549834 is an apocalyptic number.

2820549834 is an abundant number, since it is smaller than the sum of its proper divisors (3431877750).

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

2820549834 is a wasteful number, since it uses less digits than its factorization.

2820549834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19723 (or 19720 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 2820549834 is about 53108.8489236963. The cubic root of 2820549834 is about 1412.8994598821.

The spelling of 2820549834 in words is "two billion, eight hundred twenty million, five hundred forty-nine thousand, eight hundred thirty-four".