840332341 has 2 divisors, whose sum is σ = 840332342. Its totient is φ = 840332340.

The previous prime is 840332303. The next prime is 840332369. The reversal of 840332341 is 143233048.

It is the 11835-th star number.

It is an a-pointer prime, because the next prime (840332369) can be obtained adding 840332341 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825355441 + 14976900 = 28729^2 + 3870^2 .

It is a cyclic number.

It is not a de Polignac number, because 840332341 - 2¹⁵ = 840299573 is a prime.

It is a super-3 number, since 3×840332341³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840332041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420166170 + 420166171.

It is an arithmetic number, because the mean of its divisors is an integer number (420166171).

Almost surely, 2^840332341 is an apocalyptic number.

It is an amenable number.

840332341 is a deficient number, since it is larger than the sum of its proper divisors (1).

840332341 is an equidigital number, since it uses as much as digits as its factorization.

840332341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 840332341 is about 28988.4863523434. The cubic root of 840332341 is about 943.6632148257.

Adding to 840332341 its reverse (143233048), we get a palindrome (983565389).

The spelling of 840332341 in words is "eight hundred forty million, three hundred thirty-two thousand, three hundred forty-one".