1340126423 has 8 divisors (see below), whose sum is σ = 1343886720. Its totient is φ = 1336372920.

The previous prime is 1340126419. The next prime is 1340126443. The reversal of 1340126423 is 3246210431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340126423 - 2² = 1340126419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340126392 and 1340126401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340126443) 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, 1015358 + ... + 1016676.

It is an arithmetic number, because the mean of its divisors is an integer number (167985840).

Almost surely, 2^1340126423 is an apocalyptic number.

1340126423 is a deficient number, since it is larger than the sum of its proper divisors (3760297).

1340126423 is a wasteful number, since it uses less digits than its factorization.

1340126423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1340126423 is about 36607.7372013076. The cubic root of 1340126423 is about 1102.5084415141.

Adding to 1340126423 its reverse (3246210431), we get a palindrome (4586336854).

The spelling of 1340126423 in words is "one billion, three hundred forty million, one hundred twenty-six thousand, four hundred twenty-three".