1340242323 has 16 divisors (see below), whose sum is σ = 2080809216. Its totient is φ = 751402080.

The previous prime is 1340242297. The next prime is 1340242333. The reversal of 1340242323 is 3232420431.

It is not a de Polignac number, because 1340242323 - 2⁵ = 1340242291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340242293 and 1340242302.

It is not an unprimeable number, because it can be changed into a prime (1340242333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600973 + ... + 603198.

It is an arithmetic number, because the mean of its divisors is an integer number (130050576).

Almost surely, 2^1340242323 is an apocalyptic number.

1340242323 is a deficient number, since it is larger than the sum of its proper divisors (740566893).

1340242323 is a wasteful number, since it uses less digits than its factorization.

1340242323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204234.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1340242323 is about 36609.3201657720. The cubic root of 1340242323 is about 1102.5402238501.

Adding to 1340242323 its reverse (3232420431), we get a palindrome (4572662754).

The spelling of 1340242323 in words is "one billion, three hundred forty million, two hundred forty-two thousand, three hundred twenty-three".