242841845 has 4 divisors (see below), whose sum is σ = 291410220. Its totient is φ = 194273472.

The previous prime is 242841779. The next prime is 242841899. The reversal of 242841845 is 548148242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 94148209 + 148693636 = 9703^2 + 12194^2 .

It is a cyclic number.

It is not a de Polignac number, because 242841845 - 2⁸ = 242841589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242841799 and 242841808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24284180 + ... + 24284189.

It is an arithmetic number, because the mean of its divisors is an integer number (72852555).

Almost surely, 2^242841845 is an apocalyptic number.

It is an amenable number.

242841845 is a deficient number, since it is larger than the sum of its proper divisors (48568375).

242841845 is an equidigital number, since it uses as much as digits as its factorization.

242841845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48568374.

The product of its digits is 81920, while the sum is 38.

The square root of 242841845 is about 15583.3836184572. The cubic root of 242841845 is about 623.8897366055.

The spelling of 242841845 in words is "two hundred forty-two million, eight hundred forty-one thousand, eight hundred forty-five".