241644421 has 4 divisors (see below), whose sum is σ = 241772652. Its totient is φ = 241516192.

The previous prime is 241644407. The next prime is 241644427. The reversal of 241644421 is 124446142.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112572100 + 129072321 = 10610^2 + 11361^2 .

It is a cyclic number.

It is not a de Polignac number, because 241644421 - 2¹⁹ = 241120133 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 241644421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241644427) 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, 61246 + ... + 65071.

It is an arithmetic number, because the mean of its divisors is an integer number (60443163).

Almost surely, 2^241644421 is an apocalyptic number.

It is an amenable number.

241644421 is a deficient number, since it is larger than the sum of its proper divisors (128231).

241644421 is a wasteful number, since it uses less digits than its factorization.

241644421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128230.

The product of its digits is 6144, while the sum is 28.

The square root of 241644421 is about 15544.9162429394. The cubic root of 241644421 is about 622.8626047187.

The spelling of 241644421 in words is "two hundred forty-one million, six hundred forty-four thousand, four hundred twenty-one".