242042511 has 8 divisors (see below), whose sum is σ = 322804224. Its totient is φ = 161321240.

The previous prime is 242042509. The next prime is 242042551. The reversal of 242042511 is 115240242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242042511 - 2¹ = 242042509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242042551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9040 + ... + 23786.

It is an arithmetic number, because the mean of its divisors is an integer number (40350528).

Almost surely, 2^242042511 is an apocalyptic number.

242042511 is a deficient number, since it is larger than the sum of its proper divisors (80761713).

242042511 is a wasteful number, since it uses less digits than its factorization.

242042511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20221.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 242042511 is about 15557.7154813938. The cubic root of 242042511 is about 623.2044559610.

Adding to 242042511 its reverse (115240242), we get a palindrome (357282753).

The spelling of 242042511 in words is "two hundred forty-two million, forty-two thousand, five hundred eleven".