242230209 has 16 divisors (see below), whose sum is σ = 348432000. Its totient is φ = 148801536.

The previous prime is 242230201. The next prime is 242230217. The reversal of 242230209 is 902032242.

It is an interprime number because it is at equal distance from previous prime (242230201) and next prime (242230217).

It is not a de Polignac number, because 242230209 - 2³ = 242230201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242230201) 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, 18177 + ... + 28545.

It is an arithmetic number, because the mean of its divisors is an integer number (21777000).

Almost surely, 2^242230209 is an apocalyptic number.

It is an amenable number.

242230209 is a deficient number, since it is larger than the sum of its proper divisors (106201791).

242230209 is a wasteful number, since it uses less digits than its factorization.

242230209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10984.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 242230209 is about 15563.7466247687. The cubic root of 242230209 is about 623.3655075681.

The spelling of 242230209 in words is "two hundred forty-two million, two hundred thirty thousand, two hundred nine".