242806471 has 4 divisors (see below), whose sum is σ = 242975032. Its totient is φ = 242637912.

The previous prime is 242806379. The next prime is 242806481. The reversal of 242806471 is 174608242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174608242 = 2 ⋅87304121.

It is a cyclic number.

It is not a de Polignac number, because 242806471 - 2¹¹ = 242804423 is a prime.

It is a super-3 number, since 3×242806471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242806481) 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, 82101 + ... + 85006.

It is an arithmetic number, because the mean of its divisors is an integer number (60743758).

Almost surely, 2^242806471 is an apocalyptic number.

242806471 is a deficient number, since it is larger than the sum of its proper divisors (168561).

242806471 is a wasteful number, since it uses less digits than its factorization.

242806471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168560.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 242806471 is about 15582.2485861316. The cubic root of 242806471 is about 623.8594417893.

The spelling of 242806471 in words is "two hundred forty-two million, eight hundred six thousand, four hundred seventy-one".