2340427681 has 2 divisors, whose sum is σ = 2340427682. Its totient is φ = 2340427680.

The previous prime is 2340427667. The next prime is 2340427717. The reversal of 2340427681 is 1867240432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2307937681 + 32490000 = 48041^2 + 5700^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340427681 - 2¹⁹ = 2339903393 is a prime.

It is a super-2 number, since 2×2340427681² = 10955203459982075522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2340427681.

It is not a weakly prime, because it can be changed into another prime (2340427601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170213840 + 1170213841.

It is an arithmetic number, because the mean of its divisors is an integer number (1170213841).

Almost surely, 2^2340427681 is an apocalyptic number.

It is an amenable number.

2340427681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340427681 is an equidigital number, since it uses as much as digits as its factorization.

2340427681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2340427681 is about 48377.9668960985. The cubic root of 2340427681 is about 1327.6952718776.

The spelling of 2340427681 in words is "two billion, three hundred forty million, four hundred twenty-seven thousand, six hundred eighty-one".