240679221 has 8 divisors (see below), whose sum is σ = 326166624. Its totient is φ = 157822320.

The previous prime is 240679193. The next prime is 240679223. The reversal of 240679221 is 122976042.

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

It is not a de Polignac number, because 240679221 - 2⁵ = 240679189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240679223) 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, 657411 + ... + 657776.

It is an arithmetic number, because the mean of its divisors is an integer number (40770828).

Almost surely, 2^240679221 is an apocalyptic number.

It is an amenable number.

240679221 is a deficient number, since it is larger than the sum of its proper divisors (85487403).

240679221 is a wasteful number, since it uses less digits than its factorization.

240679221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315251.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 240679221 is about 15513.8396601228. The cubic root of 240679221 is about 622.0321983380.

The spelling of 240679221 in words is "two hundred forty million, six hundred seventy-nine thousand, two hundred twenty-one".