240506423 has 4 divisors (see below), whose sum is σ = 250963248. Its totient is φ = 230049600.

The previous prime is 240506407. The next prime is 240506449. The reversal of 240506423 is 324605042.

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 240506423 - 2⁴ = 240506407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240506392 and 240506401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240506723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5228378 + ... + 5228423.

It is an arithmetic number, because the mean of its divisors is an integer number (62740812).

Almost surely, 2^240506423 is an apocalyptic number.

240506423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

240506423 is a deficient number, since it is larger than the sum of its proper divisors (10456825).

240506423 is a wasteful number, since it uses less digits than its factorization.

240506423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10456824.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 240506423 is about 15508.2695037196. The cubic root of 240506423 is about 621.8832979979.

The spelling of 240506423 in words is "two hundred forty million, five hundred six thousand, four hundred twenty-three".