240432221 has 8 divisors (see below), whose sum is σ = 250668000. Its totient is φ = 230407632.

The previous prime is 240432197. The next prime is 240432281. The reversal of 240432221 is 122234042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240432221 - 2¹⁰ = 240431197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240432193 and 240432202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240432281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50471 + ... + 55028.

It is an arithmetic number, because the mean of its divisors is an integer number (31333500).

Almost surely, 2^240432221 is an apocalyptic number.

It is an amenable number.

240432221 is a deficient number, since it is larger than the sum of its proper divisors (10235779).

240432221 is a wasteful number, since it uses less digits than its factorization.

240432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105595.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 240432221 is about 15505.8769826153. The cubic root of 240432221 is about 621.8193361151.

Adding to 240432221 its reverse (122234042), we get a palindrome (362666263).

The spelling of 240432221 in words is "two hundred forty million, four hundred thirty-two thousand, two hundred twenty-one".