2440042323 has 4 divisors (see below), whose sum is σ = 3253389768. Its totient is φ = 1626694880.

The previous prime is 2440042313. The next prime is 2440042349. The reversal of 2440042323 is 3232400442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2440042323 - 2⁹ = 2440041811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2440042293 and 2440042302.

It is not an unprimeable number, because it can be changed into a prime (2440042313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406673718 + ... + 406673723.

It is an arithmetic number, because the mean of its divisors is an integer number (813347442).

Almost surely, 2^2440042323 is an apocalyptic number.

2440042323 is a deficient number, since it is larger than the sum of its proper divisors (813347445).

2440042323 is an equidigital number, since it uses as much as digits as its factorization.

2440042323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813347444.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 2440042323 is about 49396.7845411015. The cubic root of 2440042323 is about 1346.2708832732.

Adding to 2440042323 its reverse (3232400442), we get a palindrome (5672442765).

The spelling of 2440042323 in words is "two billion, four hundred forty million, forty-two thousand, three hundred twenty-three".