242002530 has 192 divisors, whose sum is σ = 802234368. Its totient is φ = 49150080.

The previous prime is 242002513. The next prime is 242002543. The reversal of 242002530 is 35200242.

242002530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 325339 + ... + 326081.

It is an arithmetic number, because the mean of its divisors is an integer number (4178304).

Almost surely, 2^242002530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242002530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401117184).

242002530 is an abundant number, since it is smaller than the sum of its proper divisors (560231838).

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

242002530 is a wasteful number, since it uses less digits than its factorization.

242002530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 242002530 is about 15556.4305031713. The cubic root of 242002530 is about 623.1701400754.

Adding to 242002530 its reverse (35200242), we get a palindrome (277202772).

The spelling of 242002530 in words is "two hundred forty-two million, two thousand, five hundred thirty".