2809940293 has 2 divisors, whose sum is σ = 2809940294. Its totient is φ = 2809940292.

The previous prime is 2809940227. The next prime is 2809940303. The reversal of 2809940293 is 3920499082.

2809940293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1535307489 + 1274632804 = 39183^2 + 35702^2 .

It is a cyclic number.

It is not a de Polignac number, because 2809940293 - 2²¹ = 2807843141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2809940213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404970146 + 1404970147.

It is an arithmetic number, because the mean of its divisors is an integer number (1404970147).

Almost surely, 2^2809940293 is an apocalyptic number.

It is an amenable number.

2809940293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2809940293 is an equidigital number, since it uses as much as digits as its factorization.

2809940293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 2809940293 is about 53008.8699464533. The cubic root of 2809940293 is about 1411.1256864083.

The spelling of 2809940293 in words is "two billion, eight hundred nine million, nine hundred forty thousand, two hundred ninety-three".