2803345385 has 8 divisors (see below), whose sum is σ = 3394877640. Its totient is φ = 2222100864.

The previous prime is 2803345381. The next prime is 2803345393. The reversal of 2803345385 is 5835433082.

It can be written as a sum of positive squares in 4 ways, for example, as 764190736 + 2039154649 = 27644^2 + 45157^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2803345385 - 2² = 2803345381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2803345381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2571332 + ... + 2572421.

It is an arithmetic number, because the mean of its divisors is an integer number (424359705).

Almost surely, 2^2803345385 is an apocalyptic number.

It is an amenable number.

2803345385 is a deficient number, since it is larger than the sum of its proper divisors (591532255).

2803345385 is a wasteful number, since it uses less digits than its factorization.

2803345385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143867.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 2803345385 is about 52946.6277018660. The cubic root of 2803345385 is about 1410.0208546117.

The spelling of 2803345385 in words is "two billion, eight hundred three million, three hundred forty-five thousand, three hundred eighty-five".