2256404039 has 2 divisors, whose sum is σ = 2256404040. Its totient is φ = 2256404038.

The previous prime is 2256404027. The next prime is 2256404081. The reversal of 2256404039 is 9304046522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2256404039 - 2²⁰ = 2255355463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256404639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128202019 + 1128202020.

It is an arithmetic number, because the mean of its divisors is an integer number (1128202020).

Almost surely, 2^2256404039 is an apocalyptic number.

2256404039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256404039 is an equidigital number, since it uses as much as digits as its factorization.

2256404039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2256404039 is about 47501.6214354837. The cubic root of 2256404039 is about 1311.6127291120.

The spelling of 2256404039 in words is "two billion, two hundred fifty-six million, four hundred four thousand, thirty-nine".