2800440239 has 2 divisors, whose sum is σ = 2800440240. Its totient is φ = 2800440238.

The previous prime is 2800440163. The next prime is 2800440271. The reversal of 2800440239 is 9320440082.

It is an a-pointer prime, because the next prime (2800440271) can be obtained adding 2800440239 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2800440239 is a prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400220119 + 1400220120.

It is an arithmetic number, because the mean of its divisors is an integer number (1400220120).

Almost surely, 2^2800440239 is an apocalyptic number.

2800440239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2800440239 is an equidigital number, since it uses as much as digits as its factorization.

2800440239 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 2800440239 is about 52919.1859253334. The cubic root of 2800440239 is about 1409.5336114882.

The spelling of 2800440239 in words is "two billion, eight hundred million, four hundred forty thousand, two hundred thirty-nine".