74441221 has 8 divisors (see below), whose sum is σ = 79530080. Its totient is φ = 69469488.

The previous prime is 74441209. The next prime is 74441243. The reversal of 74441221 is 12214447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74441221 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 (74441251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27966 + ... + 30511.

It is an arithmetic number, because the mean of its divisors is an integer number (9941260).

Almost surely, 2^74441221 is an apocalyptic number.

It is an amenable number.

74441221 is a deficient number, since it is larger than the sum of its proper divisors (5088859).

74441221 is a wasteful number, since it uses less digits than its factorization.

74441221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58563.

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

The square root of 74441221 is about 8627.9326028893. The cubic root of 74441221 is about 420.6664042796. Note that the first 3 decimals are identical.

Adding to 74441221 its reverse (12214447), we get a palindrome (86655668).

The spelling of 74441221 in words is "seventy-four million, four hundred forty-one thousand, two hundred twenty-one".