242311530 has 64 divisors (see below), whose sum is σ = 610727040. Its totient is φ = 61442304.

The previous prime is 242311519. The next prime is 242311549. The reversal of 242311530 is 35113242.

242311530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 242311497 and 242311506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56212 + ... + 60368.

It is an arithmetic number, because the mean of its divisors is an integer number (9542610).

Almost surely, 2^242311530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242311530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305363520).

242311530 is an abundant number, since it is smaller than the sum of its proper divisors (368415510).

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

242311530 is a wasteful number, since it uses less digits than its factorization.

242311530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 242311530 is about 15566.3589191564. The cubic root of 242311530 is about 623.4352580682.

Adding to 242311530 its reverse (35113242), we get a palindrome (277424772).

The spelling of 242311530 in words is "two hundred forty-two million, three hundred eleven thousand, five hundred thirty".