741440221 has 4 divisors (see below), whose sum is σ = 749771100. Its totient is φ = 733109344.

The previous prime is 741440209. The next prime is 741440239. The reversal of 741440221 is 122044147.

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 341880100 + 399560121 = 18490^2 + 19989^2 .

It is a cyclic number.

It is not a de Polignac number, because 741440221 - 2¹⁵ = 741407453 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 (741440281) 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, 4165306 + ... + 4165483.

It is an arithmetic number, because the mean of its divisors is an integer number (187442775).

Almost surely, 2^741440221 is an apocalyptic number.

It is an amenable number.

741440221 is a deficient number, since it is larger than the sum of its proper divisors (8330879).

741440221 is an equidigital number, since it uses as much as digits as its factorization.

741440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8330878.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 741440221 is about 27229.3999383020. The cubic root of 741440221 is about 905.0905848299.

Adding to 741440221 its reverse (122044147), we get a palindrome (863484368).

The spelling of 741440221 in words is "seven hundred forty-one million, four hundred forty thousand, two hundred twenty-one".