3440444257 has 2 divisors, whose sum is σ = 3440444258. Its totient is φ = 3440444256.

The previous prime is 3440444239. The next prime is 3440444299. The reversal of 3440444257 is 7524440443.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2303136081 + 1137308176 = 47991^2 + 33724^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440444257 - 2¹¹ = 3440442209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3440444237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720222128 + 1720222129.

It is an arithmetic number, because the mean of its divisors is an integer number (1720222129).

Almost surely, 2^3440444257 is an apocalyptic number.

It is an amenable number.

3440444257 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440444257 is an equidigital number, since it uses as much as digits as its factorization.

3440444257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 37.

The square root of 3440444257 is about 58655.3003316836. The cubic root of 3440444257 is about 1509.6334442033.

The spelling of 3440444257 in words is "three billion, four hundred forty million, four hundred forty-four thousand, two hundred fifty-seven".