242838571 has 4 divisors (see below), whose sum is σ = 242871112. Its totient is φ = 242806032.

The previous prime is 242838569. The next prime is 242838611. The reversal of 242838571 is 175838242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242838571 - 2¹ = 242838569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242838521) 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, 1120 + ... + 22066.

It is an arithmetic number, because the mean of its divisors is an integer number (60717778).

Almost surely, 2^242838571 is an apocalyptic number.

242838571 is a deficient number, since it is larger than the sum of its proper divisors (32541).

242838571 is a wasteful number, since it uses less digits than its factorization.

242838571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32540.

The product of its digits is 107520, while the sum is 40.

The square root of 242838571 is about 15583.2785703138. The cubic root of 242838571 is about 623.8869328271.

The spelling of 242838571 in words is "two hundred forty-two million, eight hundred thirty-eight thousand, five hundred seventy-one".