305666241 has 4 divisors (see below), whose sum is σ = 407554992. Its totient is φ = 203777492.

The previous prime is 305666203. The next prime is 305666269. The reversal of 305666241 is 142666503.

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 305666241 - 2¹⁴ = 305649857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (305666441) 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, 50944371 + ... + 50944376.

It is an arithmetic number, because the mean of its divisors is an integer number (101888748).

Almost surely, 2^305666241 is an apocalyptic number.

It is an amenable number.

305666241 is a deficient number, since it is larger than the sum of its proper divisors (101888751).

305666241 is a wasteful number, since it uses less digits than its factorization.

305666241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101888750.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 305666241 is about 17483.3132157495. The cubic root of 305666241 is about 673.6213220638.

The spelling of 305666241 in words is "three hundred five million, six hundred sixty-six thousand, two hundred forty-one".