2820549836 has 72 divisors (see below), whose sum is σ = 5461671600. Its totient is φ = 1273708800.

The previous prime is 2820549821. The next prime is 2820549839. The reversal of 2820549836 is 6389450282.

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, 7441895 + ... + 7442273.

It is an arithmetic number, because the mean of its divisors is an integer number (75856550).

Almost surely, 2^2820549836 is an apocalyptic number.

2820549836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2820549836 is a deficient number, since it is larger than the sum of its proper divisors (2641121764).

2820549836 is a wasteful number, since it uses less digits than its factorization.

2820549836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 2820549836 is about 53108.8489425256. The cubic root of 2820549836 is about 1412.8994602160.

The spelling of 2820549836 in words is "two billion, eight hundred twenty million, five hundred forty-nine thousand, eight hundred thirty-six".