242594881 has 4 divisors (see below), whose sum is σ = 243228672. Its totient is φ = 241961092.

The previous prime is 242594867. The next prime is 242594897. The reversal of 242594881 is 188495242.

242594881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242594881 - 2¹⁹ = 242070593 is a prime.

It is a super-2 number, since 2×242594881² = 117704552574808322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242594851) 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, 316321 + ... + 317086.

It is an arithmetic number, because the mean of its divisors is an integer number (60807168).

Almost surely, 2^242594881 is an apocalyptic number.

It is an amenable number.

242594881 is a deficient number, since it is larger than the sum of its proper divisors (633791).

242594881 is an equidigital number, since it uses as much as digits as its factorization.

242594881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633790.

The product of its digits is 184320, while the sum is 43.

The square root of 242594881 is about 15575.4576497771. The cubic root of 242594881 is about 623.6781715220.

The spelling of 242594881 in words is "two hundred forty-two million, five hundred ninety-four thousand, eight hundred eighty-one".