3440999981 has 2 divisors, whose sum is σ = 3440999982. Its totient is φ = 3440999980.

The previous prime is 3440999957. The next prime is 3440999987. The reversal of 3440999981 is 1899990443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3123803881 + 317196100 = 55891^2 + 17810^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440999981 - 2⁶ = 3440999917 is a prime.

It is a super-3 number, since 3×3440999981³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440999987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720499990 + 1720499991.

It is an arithmetic number, because the mean of its divisors is an integer number (1720499991).

Almost surely, 2^3440999981 is an apocalyptic number.

It is an amenable number.

3440999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440999981 is an equidigital number, since it uses as much as digits as its factorization.

3440999981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 3440999981 is about 58660.0373422997. The cubic root of 3440999981 is about 1509.7147219209.

The spelling of 3440999981 in words is "three billion, four hundred forty million, nine hundred ninety-nine thousand, nine hundred eighty-one".