3380031981 has 6 divisors (see below), whose sum is σ = 4882268430. Its totient is φ = 2253354648.

The previous prime is 3380031979. The next prime is 3380032009. The reversal of 3380031981 is 1891300833.

3380031981 is a `hidden beast` number, since 338 + 0 + 0 + 319 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2690496900 + 689535081 = 51870^2 + 26259^2 .

It is not a de Polignac number, because 3380031981 - 2¹ = 3380031979 is a prime.

It is a super-2 number, since 2×3380031981² = 22849232385165568722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3380031901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187779546 + ... + 187779563.

It is an arithmetic number, because the mean of its divisors is an integer number (813711405).

Almost surely, 2^3380031981 is an apocalyptic number.

It is an amenable number.

3380031981 is a deficient number, since it is larger than the sum of its proper divisors (1502236449).

3380031981 is a wasteful number, since it uses less digits than its factorization.

3380031981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375559115 (or 375559112 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 3380031981 is about 58138.0424593054. The cubic root of 3380031981 is about 1500.7451084809.

The spelling of 3380031981 in words is "three billion, three hundred eighty million, thirty-one thousand, nine hundred eighty-one".