74421441 has 6 divisors (see below), whose sum is σ = 107497650. Its totient is φ = 49614288.

The previous prime is 74421409. The next prime is 74421443. The reversal of 74421441 is 14412447.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 24295041 = 7080^2 + 4929^2 .

It is not a de Polignac number, because 74421441 - 2⁵ = 74421409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74421443) 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 5 ways as a sum of consecutive naturals, for example, 4134516 + ... + 4134533.

It is an arithmetic number, because the mean of its divisors is an integer number (17916275).

Almost surely, 2^74421441 is an apocalyptic number.

It is an amenable number.

74421441 is a deficient number, since it is larger than the sum of its proper divisors (33076209).

74421441 is a wasteful number, since it uses less digits than its factorization.

74421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8269055 (or 8269052 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 74421441 is about 8626.7862498152. The cubic root of 74421441 is about 420.6291421353.

Adding to 74421441 its reverse (14412447), we get a palindrome (88833888).

The spelling of 74421441 in words is "seventy-four million, four hundred twenty-one thousand, four hundred forty-one".