74530241 has 4 divisors (see below), whose sum is σ = 75298692. Its totient is φ = 73761792.

The previous prime is 74530237. The next prime is 74530273. The reversal of 74530241 is 14203547.

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 24049216 + 50481025 = 4904^2 + 7105^2 .

It is a cyclic number.

It is not a de Polignac number, because 74530241 - 2² = 74530237 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 74530241.

It is not an unprimeable number, because it can be changed into a prime (74530441) 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 3 ways as a sum of consecutive naturals, for example, 384080 + ... + 384273.

It is an arithmetic number, because the mean of its divisors is an integer number (18824673).

Almost surely, 2^74530241 is an apocalyptic number.

It is an amenable number.

74530241 is a deficient number, since it is larger than the sum of its proper divisors (768451).

74530241 is an equidigital number, since it uses as much as digits as its factorization.

74530241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768450.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 74530241 is about 8633.0898871725. The cubic root of 74530241 is about 420.8340211166.

Adding to 74530241 its reverse (14203547), we get a palindrome (88733788).

The spelling of 74530241 in words is "seventy-four million, five hundred thirty thousand, two hundred forty-one".