3440730281 has 2 divisors, whose sum is σ = 3440730282. Its totient is φ = 3440730280.

The previous prime is 3440730253. The next prime is 3440730367. The reversal of 3440730281 is 1820370443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3361680400 + 79049881 = 57980^2 + 8891^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440730281 - 2¹⁴ = 3440713897 is a prime.

It is a super-2 number, since 2×3440730281² = 23677249733180677922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3440730211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720365140 + 1720365141.

It is an arithmetic number, because the mean of its divisors is an integer number (1720365141).

Almost surely, 2^3440730281 is an apocalyptic number.

It is an amenable number.

3440730281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440730281 is an equidigital number, since it uses as much as digits as its factorization.

3440730281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3440730281 is about 58657.7384579392. The cubic root of 3440730281 is about 1509.6752778929.

The spelling of 3440730281 in words is "three billion, four hundred forty million, seven hundred thirty thousand, two hundred eighty-one".