2256874349 has 2 divisors, whose sum is σ = 2256874350. Its totient is φ = 2256874348.

The previous prime is 2256874327. The next prime is 2256874427. The reversal of 2256874349 is 9434786522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1789882249 + 466992100 = 42307^2 + 21610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256874349 - 2²⁴ = 2240097133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2256874297 and 2256874306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256874649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128437174 + 1128437175.

It is an arithmetic number, because the mean of its divisors is an integer number (1128437175).

Almost surely, 2^2256874349 is an apocalyptic number.

It is an amenable number.

2256874349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256874349 is an equidigital number, since it uses as much as digits as its factorization.

2256874349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 50.

The square root of 2256874349 is about 47506.5716401426. The cubic root of 2256874349 is about 1311.7038507549.

The spelling of 2256874349 in words is "two billion, two hundred fifty-six million, eight hundred seventy-four thousand, three hundred forty-nine".