240521223 has 16 divisors (see below), whose sum is σ = 326162816. Its totient is φ = 157623840.

The previous prime is 240521191. The next prime is 240521243. The reversal of 240521223 is 322125042.

It is not a de Polignac number, because 240521223 - 2⁵ = 240521191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240521223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240521243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 128313 + ... + 130173.

It is an arithmetic number, because the mean of its divisors is an integer number (20385176).

Almost surely, 2^240521223 is an apocalyptic number.

240521223 is a deficient number, since it is larger than the sum of its proper divisors (85641593).

240521223 is a wasteful number, since it uses less digits than its factorization.

240521223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 240521223 is about 15508.7466611587. The cubic root of 240521223 is about 621.8960539761.

Adding to 240521223 its reverse (322125042), we get a palindrome (562646265).

The spelling of 240521223 in words is "two hundred forty million, five hundred twenty-one thousand, two hundred twenty-three".