242591827 has 4 divisors (see below), whose sum is σ = 242623080. Its totient is φ = 242560576.

The previous prime is 242591821. The next prime is 242591831. The reversal of 242591827 is 728195242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 728195242 = 2 ⋅364097621.

It is a cyclic number.

It is not a de Polignac number, because 242591827 - 2²³ = 234203219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242591827.

It is not an unprimeable number, because it can be changed into a prime (242591821) 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, 5928 + ... + 22810.

It is an arithmetic number, because the mean of its divisors is an integer number (60655770).

Almost surely, 2^242591827 is an apocalyptic number.

242591827 is a deficient number, since it is larger than the sum of its proper divisors (31253).

242591827 is a wasteful number, since it uses less digits than its factorization.

242591827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31252.

The product of its digits is 80640, while the sum is 40.

The square root of 242591827 is about 15575.3596106157. The cubic root of 242591827 is about 623.6755543726.

The spelling of 242591827 in words is "two hundred forty-two million, five hundred ninety-one thousand, eight hundred twenty-seven".