242440571 has 4 divisors (see below), whose sum is σ = 242608200. Its totient is φ = 242272944.

The previous prime is 242440559. The next prime is 242440573. The reversal of 242440571 is 175044242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242440571 - 2⁶ = 242440507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242440573) 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, 81626 + ... + 84543.

It is an arithmetic number, because the mean of its divisors is an integer number (60652050).

Almost surely, 2^242440571 is an apocalyptic number.

242440571 is a deficient number, since it is larger than the sum of its proper divisors (167629).

242440571 is a wasteful number, since it uses less digits than its factorization.

242440571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167628.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 242440571 is about 15570.5032352843. The cubic root of 242440571 is about 623.5459068579.

The spelling of 242440571 in words is "two hundred forty-two million, four hundred forty thousand, five hundred seventy-one".