74391241 has 4 divisors (see below), whose sum is σ = 74471572. Its totient is φ = 74310912.

The previous prime is 74391221. The next prime is 74391259. The reversal of 74391241 is 14219347.

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 22838841 + 51552400 = 4779^2 + 7180^2 .

It is a cyclic number.

It is not a de Polignac number, because 74391241 - 2⁵ = 74391209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74391221) 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, 38760 + ... + 40633.

It is an arithmetic number, because the mean of its divisors is an integer number (18617893).

Almost surely, 2^74391241 is an apocalyptic number.

It is an amenable number.

74391241 is a deficient number, since it is larger than the sum of its proper divisors (80331).

74391241 is an equidigital number, since it uses as much as digits as its factorization.

74391241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80330.

The product of its digits is 6048, while the sum is 31.

The square root of 74391241 is about 8625.0357100710. The cubic root of 74391241 is about 420.5722377513.

The spelling of 74391241 in words is "seventy-four million, three hundred ninety-one thousand, two hundred forty-one".