1240410343 has 2 divisors, whose sum is σ = 1240410344. Its totient is φ = 1240410342.

The previous prime is 1240410341. The next prime is 1240410361. The reversal of 1240410343 is 3430140421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240410343 - 2¹ = 1240410341 is a prime.

Together with 1240410341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240410341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620205171 + 620205172.

It is an arithmetic number, because the mean of its divisors is an integer number (620205172).

Almost surely, 2^1240410343 is an apocalyptic number.

1240410343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240410343 is an equidigital number, since it uses as much as digits as its factorization.

1240410343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240410343 is about 35219.4597204443. The cubic root of 1240410343 is about 1074.4555650957.

Adding to 1240410343 its reverse (3430140421), we get a palindrome (4670550764).

The spelling of 1240410343 in words is "one billion, two hundred forty million, four hundred ten thousand, three hundred forty-three".