3846040321 has 2 divisors, whose sum is σ = 3846040322. Its totient is φ = 3846040320.

The previous prime is 3846040229. The next prime is 3846040333. The reversal of 3846040321 is 1230406483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3076255296 + 769785025 = 55464^2 + 27745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3846040321 is a prime.

It is not a weakly prime, because it can be changed into another prime (3846040351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923020160 + 1923020161.

It is an arithmetic number, because the mean of its divisors is an integer number (1923020161).

Almost surely, 2^3846040321 is an apocalyptic number.

It is an amenable number.

3846040321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3846040321 is an equidigital number, since it uses as much as digits as its factorization.

3846040321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 3846040321 is about 62016.4520187990. The cubic root of 3846040321 is about 1566.7677047004.

The spelling of 3846040321 in words is "three billion, eight hundred forty-six million, forty thousand, three hundred twenty-one".