2808980172 has 36 divisors (see below), whose sum is σ = 7103960136. Its totient is φ = 935867520.

The previous prime is 2808980143. The next prime is 2808980183. The reversal of 2808980172 is 2710898082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 59743 + ... + 95849.

It is an arithmetic number, because the mean of its divisors is an integer number (197332226).

Almost surely, 2^2808980172 is an apocalyptic number.

It is an amenable number.

2808980172 is an abundant number, since it is smaller than the sum of its proper divisors (4294979964).

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

2808980172 is a wasteful number, since it uses less digits than its factorization.

2808980172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38278 (or 38273 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 2808980172 is about 52999.8129430661. The cubic root of 2808980172 is about 1410.9649468427.

The spelling of 2808980172 in words is "two billion, eight hundred eight million, nine hundred eighty thousand, one hundred seventy-two".