7340219281 has 2 divisors, whose sum is σ = 7340219282. Its totient is φ = 7340219280.

The previous prime is 7340219279. The next prime is 7340219317. The reversal of 7340219281 is 1829120437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7082905600 + 257313681 = 84160^2 + 16041^2 .

It is a cyclic number.

It is not a de Polignac number, because 7340219281 - 2¹ = 7340219279 is a prime.

It is a super-2 number, since 2×7340219281² (a number of 21 digits) contains 22 as substring.

Together with 7340219279, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7340219281.

It is not a weakly prime, because it can be changed into another prime (7340219221) 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, 3670109640 + 3670109641.

It is an arithmetic number, because the mean of its divisors is an integer number (3670109641).

Almost surely, 2^7340219281 is an apocalyptic number.

It is an amenable number.

7340219281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7340219281 is an equidigital number, since it uses as much as digits as its factorization.

7340219281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 7340219281 is about 85675.0796964905. The cubic root of 7340219281 is about 1943.4334706283.

The spelling of 7340219281 in words is "seven billion, three hundred forty million, two hundred nineteen thousand, two hundred eighty-one".