9240926381 has 2 divisors, whose sum is σ = 9240926382. Its totient is φ = 9240926380.

The previous prime is 9240926377. The next prime is 9240926447. The reversal of 9240926381 is 1836290429.

9240926381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7009875625 + 2231050756 = 83725^2 + 47234^2 .

It is an emirp because it is prime and its reverse (1836290429) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9240926381 - 2² = 9240926377 is a prime.

It is a super-2 number, since 2×9240926381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9240926311) 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, 4620463190 + 4620463191.

It is an arithmetic number, because the mean of its divisors is an integer number (4620463191).

Almost surely, 2^9240926381 is an apocalyptic number.

It is an amenable number.

9240926381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9240926381 is an equidigital number, since it uses as much as digits as its factorization.

9240926381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 9240926381 is about 96129.7372356754. The cubic root of 9240926381 is about 2098.4816220733.

The spelling of 9240926381 in words is "nine billion, two hundred forty million, nine hundred twenty-six thousand, three hundred eighty-one".