242520312 has 16 divisors (see below), whose sum is σ = 606300840. Its totient is φ = 80840096.

The previous prime is 242520253. The next prime is 242520319. The reversal of 242520312 is 213025242.

242520312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×242520312² = 117632203465154688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242520319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5052483 + ... + 5052530.

Almost surely, 2^242520312 is an apocalyptic number.

It is an amenable number.

242520312 is an abundant number, since it is smaller than the sum of its proper divisors (363780528).

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

242520312 is a wasteful number, since it uses less digits than its factorization.

242520312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105022 (or 10105018 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 242520312 is about 15573.0636677566. The cubic root of 242520312 is about 623.6142627490.

Adding to 242520312 its reverse (213025242), we get a palindrome (455545554).

The spelling of 242520312 in words is "two hundred forty-two million, five hundred twenty thousand, three hundred twelve".