242042529 has 4 divisors (see below), whose sum is σ = 322723376. Its totient is φ = 161361684.

The previous prime is 242042509. The next prime is 242042551. The reversal of 242042529 is 925240242.

242042529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 242042529 - 2¹³ = 242034337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242042496 and 242042505.

It is not an unprimeable number, because it can be changed into a prime (242042509) 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, 40340419 + ... + 40340424.

It is an arithmetic number, because the mean of its divisors is an integer number (80680844).

Almost surely, 2^242042529 is an apocalyptic number.

It is an amenable number.

242042529 is a deficient number, since it is larger than the sum of its proper divisors (80680847).

242042529 is an equidigital number, since it uses as much as digits as its factorization.

242042529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80680846.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 242042529 is about 15557.7160598849. The cubic root of 242042529 is about 623.2044714096.

The spelling of 242042529 in words is "two hundred forty-two million, forty-two thousand, five hundred twenty-nine".