242550870 has 64 divisors (see below), whose sum is σ = 611573760. Its totient is φ = 61446528.

The previous prime is 242550863. The next prime is 242550871. The reversal of 242550870 is 78055242.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242550871) 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 31 ways as a sum of consecutive naturals, for example, 107211 + ... + 109449.

It is an arithmetic number, because the mean of its divisors is an integer number (9555840).

Almost surely, 2^242550870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242550870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305786880).

242550870 is an abundant number, since it is smaller than the sum of its proper divisors (369022890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242550870 is a wasteful number, since it uses less digits than its factorization.

242550870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 242550870 is about 15574.0447540130. The cubic root of 242550870 is about 623.6404538258.

The spelling of 242550870 in words is "two hundred forty-two million, five hundred fifty thousand, eight hundred seventy".