242880427 has 4 divisors (see below), whose sum is σ = 246505576. Its totient is φ = 239255280.

The previous prime is 242880389. The next prime is 242880431. The reversal of 242880427 is 724088242.

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 242880427 - 2¹¹ = 242878379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242880527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812474 + ... + 1812607.

It is an arithmetic number, because the mean of its divisors is an integer number (61626394).

Almost surely, 2^242880427 is an apocalyptic number.

242880427 is a deficient number, since it is larger than the sum of its proper divisors (3625149).

242880427 is an equidigital number, since it uses as much as digits as its factorization.

242880427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625148.

The product of its (nonzero) digits is 57344, while the sum is 37.

The square root of 242880427 is about 15584.6214904309. The cubic root of 242880427 is about 623.9227754463.

The spelling of 242880427 in words is "two hundred forty-two million, eight hundred eighty thousand, four hundred twenty-seven".