2820992500 has 30 divisors (see below), whose sum is σ = 6168951866. Its totient is φ = 1128396000.

The previous prime is 2820992497. The next prime is 2820992507. The reversal of 2820992500 is 52990282.

It is a happy number.

2820992500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 888159204 + 1932833296 = 29802^2 + 43964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2820992500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820992507) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 561699 + ... + 566698.

Almost surely, 2^2820992500 is an apocalyptic number.

2820992500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820992500 is an abundant number, since it is smaller than the sum of its proper divisors (3347959366).

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

2820992500 is a wasteful number, since it uses less digits than its factorization.

2820992500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128421 (or 1128404 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2820992500 is about 53113.0162954431. The cubic root of 2820992500 is about 1412.9733709836.

The spelling of 2820992500 in words is "two billion, eight hundred twenty million, nine hundred ninety-two thousand, five hundred".