242717838 has 32 divisors (see below), whose sum is σ = 530140032. Its totient is φ = 73471200.

The previous prime is 242717833. The next prime is 242717851. The reversal of 242717838 is 838717242.

242717838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 242717838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242717833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94633 + ... + 97163.

It is an arithmetic number, because the mean of its divisors is an integer number (16566876).

Almost surely, 2^242717838 is an apocalyptic number.

242717838 is an abundant number, since it is smaller than the sum of its proper divisors (287422194).

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

242717838 is a wasteful number, since it uses less digits than its factorization.

242717838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000.

The product of its digits is 150528, while the sum is 42.

The square root of 242717838 is about 15579.4042889964. The cubic root of 242717838 is about 623.7835222538.

The spelling of 242717838 in words is "two hundred forty-two million, seven hundred seventeen thousand, eight hundred thirty-eight".