240587221 has 16 divisors (see below), whose sum is σ = 282441600. Its totient is φ = 200632320.

The previous prime is 240587197. The next prime is 240587231. The reversal of 240587221 is 122785042.

It is a happy number.

It is not a de Polignac number, because 240587221 - 2⁵ = 240587189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240587231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127930 + ... + 129796.

It is an arithmetic number, because the mean of its divisors is an integer number (17652600).

Almost surely, 2^240587221 is an apocalyptic number.

It is an amenable number.

240587221 is a deficient number, since it is larger than the sum of its proper divisors (41854379).

240587221 is a wasteful number, since it uses less digits than its factorization.

240587221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 240587221 is about 15510.8742822576. The cubic root of 240587221 is about 621.9529306510.

The spelling of 240587221 in words is "two hundred forty million, five hundred eighty-seven thousand, two hundred twenty-one".