240223505 has 4 divisors (see below), whose sum is σ = 288268212. Its totient is φ = 192178800.

The previous prime is 240223483. The next prime is 240223513. The reversal of 240223505 is 505322042.

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

It can be written as a sum of positive squares in 2 ways, for example, as 138697729 + 101525776 = 11777^2 + 10076^2 .

It is not a de Polignac number, because 240223505 - 2¹⁸ = 239961361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24022346 + ... + 24022355.

It is an arithmetic number, because the mean of its divisors is an integer number (72067053).

Almost surely, 2^240223505 is an apocalyptic number.

It is an amenable number.

240223505 is a deficient number, since it is larger than the sum of its proper divisors (48044707).

240223505 is an equidigital number, since it uses as much as digits as its factorization.

240223505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48044706.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 240223505 is about 15499.1452990157. The cubic root of 240223505 is about 621.6393530044.

Adding to 240223505 its reverse (505322042), we get a palindrome (745545547).

The spelling of 240223505 in words is "two hundred forty million, two hundred twenty-three thousand, five hundred five".