242210917 has 32 divisors (see below), whose sum is σ = 298771200. Its totient is φ = 193840128.

The previous prime is 242210897. The next prime is 242210923. The reversal of 242210917 is 719012242.

It is not a de Polignac number, because 242210917 - 2⁷ = 242210789 is a prime.

It is a super-2 number, since 2×242210917² = 117332256627961778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242210957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154584 + ... + 156142.

It is an arithmetic number, because the mean of its divisors is an integer number (9336600).

Almost surely, 2^242210917 is an apocalyptic number.

It is an amenable number.

242210917 is a deficient number, since it is larger than the sum of its proper divisors (56560283).

242210917 is a wasteful number, since it uses less digits than its factorization.

242210917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 242210917 is about 15563.1268387815. The cubic root of 242210917 is about 623.3489581780.

The spelling of 242210917 in words is "two hundred forty-two million, two hundred ten thousand, nine hundred seventeen".