2808394450 has 12 divisors (see below), whose sum is σ = 5223613770. Its totient is φ = 1123357760.

The previous prime is 2808394429. The next prime is 2808394451. The reversal of 2808394450 is 544938082.

2808394450 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 3 ways, for example, as 1712056129 + 1096338321 = 41377^2 + 33111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2808394397 and 2808394406.

It is not an unprimeable number, because it can be changed into a prime (2808394451) 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, 28083895 + ... + 28083994.

Almost surely, 2^2808394450 is an apocalyptic number.

2808394450 is a deficient number, since it is larger than the sum of its proper divisors (2415219320).

2808394450 is a wasteful number, since it uses less digits than its factorization.

2808394450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56167901 (or 56167896 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 2808394450 is about 52994.2869562371. The cubic root of 2808394450 is about 1410.8668696511.

The spelling of 2808394450 in words is "two billion, eight hundred eight million, three hundred ninety-four thousand, four hundred fifty".