2808942052 has 18 divisors (see below), whose sum is σ = 5718203862. Its totient is φ = 1203832224.

The previous prime is 2808942049. The next prime is 2808942053. The reversal of 2808942052 is 2502498082.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1739390436 + 1069551616 = 41706^2 + 32704^2 .

It is a super-3 number, since 3×2808942052³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2808941996 and 2808942014.

It is not an unprimeable number, because it can be changed into a prime (2808942053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7165473 + ... + 7165864.

Almost surely, 2^2808942052 is an apocalyptic number.

It is an amenable number.

2808942052 is an abundant number, since it is smaller than the sum of its proper divisors (2909261810).

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

2808942052 is a wasteful number, since it uses less digits than its factorization.

2808942052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14331355 (or 14331346 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 2808942052 is about 52999.4533179353. The cubic root of 2808942052 is about 1410.9585641909.

The spelling of 2808942052 in words is "two billion, eight hundred eight million, nine hundred forty-two thousand, fifty-two".