242221586 has 16 divisors (see below), whose sum is σ = 366540000. Its totient is φ = 120045888.

The previous prime is 242221523. The next prime is 242221589. The reversal of 242221586 is 685122242.

It is not an unprimeable number, because it can be changed into a prime (242221589) 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, 161930 + ... + 163418.

It is an arithmetic number, because the mean of its divisors is an integer number (22908750).

Almost surely, 2^242221586 is an apocalyptic number.

242221586 is a deficient number, since it is larger than the sum of its proper divisors (124318414).

242221586 is a wasteful number, since it uses less digits than its factorization.

242221586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its digits is 15360, while the sum is 32.

The square root of 242221586 is about 15563.4696003173. The cubic root of 242221586 is about 623.3581105488.

The spelling of 242221586 in words is "two hundred forty-two million, two hundred twenty-one thousand, five hundred eighty-six".