2809880352 has 36 divisors (see below), whose sum is σ = 7990598070. Its totient is φ = 936626688.

The previous prime is 2809880351. The next prime is 2809880389. The reversal of 2809880352 is 2530889082.

It can be written as a sum of positive squares in only one way, i.e., 2771390736 + 38489616 = 52644^2 + 6204^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2809880298 and 2809880307.

It is not an unprimeable number, because it can be changed into a prime (2809880351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4877977 + ... + 4878552.

Almost surely, 2^2809880352 is an apocalyptic number.

It is an amenable number.

2809880352 is an abundant number, since it is smaller than the sum of its proper divisors (5180717718).

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

2809880352 is a wasteful number, since it uses less digits than its factorization.

2809880352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9756545 (or 9756534 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2809880352 is about 53008.3045569277. The cubic root of 2809880352 is about 1411.1156524007.

The spelling of 2809880352 in words is "two billion, eight hundred nine million, eight hundred eighty thousand, three hundred fifty-two".