240240404323 has 4 divisors (see below), whose sum is σ = 240884480848. Its totient is φ = 239596327800.

The previous prime is 240240404309. The next prime is 240240404377. The reversal of 240240404323 is 323404042042.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240240404323 is a prime.

It is a super-3 number, since 3×240240404323³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240240404291 and 240240404300.

It is not an unprimeable number, because it can be changed into a prime (240240404023) 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, 322037703 + ... + 322038448.

It is an arithmetic number, because the mean of its divisors is an integer number (60221120212).

Almost surely, 2^240240404323 is an apocalyptic number.

240240404323 is a deficient number, since it is larger than the sum of its proper divisors (644076525).

240240404323 is an equidigital number, since it uses as much as digits as its factorization.

240240404323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644076524.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 240240404323 its reverse (323404042042), we get a palindrome (563644446365).

The spelling of 240240404323 in words is "two hundred forty billion, two hundred forty million, four hundred four thousand, three hundred twenty-three".