2808945338 has 8 divisors (see below), whose sum is σ = 4216611540. Its totient is φ = 1403408160.

The previous prime is 2808945331. The next prime is 2808945367. The reversal of 2808945338 is 8335498082.

It can be written as a sum of positive squares in 2 ways, for example, as 2205899089 + 603046249 = 46967^2 + 24557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2808945331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528953 + ... + 534236.

Almost surely, 2^2808945338 is an apocalyptic number.

2808945338 is a deficient number, since it is larger than the sum of its proper divisors (1407666202).

2808945338 is a wasteful number, since it uses less digits than its factorization.

2808945338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064512.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 2808945338 is about 52999.4843182460. The cubic root of 2808945338 is about 1410.9591143871.

The spelling of 2808945338 in words is "two billion, eight hundred eight million, nine hundred forty-five thousand, three hundred thirty-eight".