2840042903 has 2 divisors, whose sum is σ = 2840042904. Its totient is φ = 2840042902.

The previous prime is 2840042869. The next prime is 2840042911. The reversal of 2840042903 is 3092400482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2840042903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2840042903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2840042963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1420021451 + 1420021452.

It is an arithmetic number, because the mean of its divisors is an integer number (1420021452).

Almost surely, 2^2840042903 is an apocalyptic number.

2840042903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2840042903 is an equidigital number, since it uses as much as digits as its factorization.

2840042903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2840042903 is about 53292.0529066014. The cubic root of 2840042903 is about 1416.1468812426.

The spelling of 2840042903 in words is "two billion, eight hundred forty million, forty-two thousand, nine hundred three".