3420029981 has 2 divisors, whose sum is σ = 3420029982. Its totient is φ = 3420029980.

The previous prime is 3420029971. The next prime is 3420029989. The reversal of 3420029981 is 1899200243.

3420029981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3295908100 + 124121881 = 57410^2 + 11141^2 .

It is an emirp because it is prime and its reverse (1899200243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3420029981 - 2³⁰ = 2346288157 is a prime.

It is a super-2 number, since 2×3420029981² = 23393210141877720722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420029989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710014990 + 1710014991.

It is an arithmetic number, because the mean of its divisors is an integer number (1710014991).

Almost surely, 2^3420029981 is an apocalyptic number.

It is an amenable number.

3420029981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420029981 is an equidigital number, since it uses as much as digits as its factorization.

3420029981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 3420029981 is about 58481.0224004335. The cubic root of 3420029981 is about 1506.6416571529.

The spelling of 3420029981 in words is "three billion, four hundred twenty million, twenty-nine thousand, nine hundred eighty-one".