3440404181 has 2 divisors, whose sum is σ = 3440404182. Its totient is φ = 3440404180.

The previous prime is 3440404153. The next prime is 3440404207. The reversal of 3440404181 is 1814040443.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3406589956 + 33814225 = 58366^2 + 5815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3440404181 is a prime.

It is a super-2 number, since 2×3440404181² = 23672761857284561522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440404481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720202090 + 1720202091.

It is an arithmetic number, because the mean of its divisors is an integer number (1720202091).

Almost surely, 2^3440404181 is an apocalyptic number.

It is an amenable number.

3440404181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440404181 is an equidigital number, since it uses as much as digits as its factorization.

3440404181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 3440404181 is about 58654.9587076830. The cubic root of 3440404181 is about 1509.6275825277.

The spelling of 3440404181 in words is "three billion, four hundred forty million, four hundred four thousand, one hundred eighty-one".