1340243422 has 16 divisors (see below), whose sum is σ = 2298764160. Its totient is φ = 574089048.

The previous prime is 1340243417. The next prime is 1340243423. The reversal of 1340243422 is 2243420431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340243423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3729 + ... + 51907.

It is an arithmetic number, because the mean of its divisors is an integer number (143672760).

Almost surely, 2^1340243422 is an apocalyptic number.

1340243422 is a deficient number, since it is larger than the sum of its proper divisors (958520738).

1340243422 is a wasteful number, since it uses less digits than its factorization.

1340243422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50175.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1340243422 is about 36609.3351756079. The cubic root of 1340243422 is about 1102.5405252114.

Adding to 1340243422 its reverse (2243420431), we get a palindrome (3583663853).

The spelling of 1340243422 in words is "one billion, three hundred forty million, two hundred forty-three thousand, four hundred twenty-two".