2340123405 has 64 divisors (see below), whose sum is σ = 3895492608. Its totient is φ = 1199024640.

The previous prime is 2340123397. The next prime is 2340123407. The reversal of 2340123405 is 5043210432.

It is not a de Polignac number, because 2340123405 - 2³ = 2340123397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340123407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12251860 + ... + 12252050.

It is an arithmetic number, because the mean of its divisors is an integer number (60867072).

Almost surely, 2^2340123405 is an apocalyptic number.

It is an amenable number.

2340123405 is a deficient number, since it is larger than the sum of its proper divisors (1555369203).

2340123405 is a wasteful number, since it uses less digits than its factorization.

2340123405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2340123405 is about 48374.8220151764. The cubic root of 2340123405 is about 1327.6377320644.

Adding to 2340123405 its reverse (5043210432), we get a palindrome (7383333837).

The spelling of 2340123405 in words is "two billion, three hundred forty million, one hundred twenty-three thousand, four hundred five".