10340381 has 2 divisors, whose sum is σ = 10340382. Its totient is φ = 10340380.

The previous prime is 10340347. The next prime is 10340387. The reversal of 10340381 is 18304301.

It is a happy number.

10340381 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., 6100900 + 4239481 = 2470^2 + 2059^2 .

It is an emirp because it is prime and its reverse (18304301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10340381 is a prime.

It is a super-2 number, since 2×10340381² = 213846958450322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10340387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5170190 + 5170191.

It is an arithmetic number, because the mean of its divisors is an integer number (5170191).

Almost surely, 2^10340381 is an apocalyptic number.

It is an amenable number.

10340381 is a deficient number, since it is larger than the sum of its proper divisors (1).

10340381 is an equidigital number, since it uses as much as digits as its factorization.

10340381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 10340381 is about 3215.6462802989. The cubic root of 10340381 is about 217.8606760641.

Adding to 10340381 its reverse (18304301), we get a palindrome (28644682).

The spelling of 10340381 in words is "ten million, three hundred forty thousand, three hundred eighty-one".