242228239 has 4 divisors (see below), whose sum is σ = 264249000. Its totient is φ = 220207480.

The previous prime is 242228237. The next prime is 242228251. The reversal of 242228239 is 932822242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242228239 - 2¹ = 242228237 is a prime.

It is a super-2 number, since 2×242228239² = 117349039538082242, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242228237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11010364 + ... + 11010385.

It is an arithmetic number, because the mean of its divisors is an integer number (66062250).

Almost surely, 2^242228239 is an apocalyptic number.

242228239 is a deficient number, since it is larger than the sum of its proper divisors (22020761).

242228239 is a wasteful number, since it uses less digits than its factorization.

242228239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22020760.

The product of its digits is 27648, while the sum is 34.

The square root of 242228239 is about 15563.6833365370. The cubic root of 242228239 is about 623.3638176696.

The spelling of 242228239 in words is "two hundred forty-two million, two hundred twenty-eight thousand, two hundred thirty-nine".