1340123242 has 8 divisors (see below), whose sum is σ = 2075029632. Its totient is φ = 648446700.

The previous prime is 1340123237. The next prime is 1340123261. The reversal of 1340123242 is 2423210431.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10807384 + ... + 10807507.

It is an arithmetic number, because the mean of its divisors is an integer number (259378704).

Almost surely, 2^1340123242 is an apocalyptic number.

1340123242 is a deficient number, since it is larger than the sum of its proper divisors (734906390).

1340123242 is a wasteful number, since it uses less digits than its factorization.

1340123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21614924.

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

The square root of 1340123242 is about 36607.6937541823. The cubic root of 1340123242 is about 1102.5075691879.

Adding to 1340123242 its reverse (2423210431), we get a palindrome (3763333673).

The spelling of 1340123242 in words is "one billion, three hundred forty million, one hundred twenty-three thousand, two hundred forty-two".