241788221 has 4 divisors (see below), whose sum is σ = 244048032. Its totient is φ = 239528412.

The previous prime is 241788187. The next prime is 241788223. The reversal of 241788221 is 122887142.

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 241788221 - 2²⁶ = 174679357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241788223) 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, 1129745 + ... + 1129958.

It is an arithmetic number, because the mean of its divisors is an integer number (61012008).

Almost surely, 2^241788221 is an apocalyptic number.

It is an amenable number.

241788221 is a deficient number, since it is larger than the sum of its proper divisors (2259811).

241788221 is a wasteful number, since it uses less digits than its factorization.

241788221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259810.

The product of its digits is 14336, while the sum is 35.

The square root of 241788221 is about 15549.5408613888. The cubic root of 241788221 is about 622.9861331676.

The spelling of 241788221 in words is "two hundred forty-one million, seven hundred eighty-eight thousand, two hundred twenty-one".