74210641 has 4 divisors (see below), whose sum is σ = 76216372. Its totient is φ = 72204912.

The previous prime is 74210639. The next prime is 74210657. The reversal of 74210641 is 14601247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14601247 = 151 ⋅96697.

It can be written as a sum of positive squares in 2 ways, for example, as 35820225 + 38390416 = 5985^2 + 6196^2 .

It is a cyclic number.

It is not a de Polignac number, because 74210641 - 2¹ = 74210639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74210671) 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, 1002810 + ... + 1002883.

It is an arithmetic number, because the mean of its divisors is an integer number (19054093).

Almost surely, 2^74210641 is an apocalyptic number.

It is an amenable number.

74210641 is a deficient number, since it is larger than the sum of its proper divisors (2005731).

74210641 is a wasteful number, since it uses less digits than its factorization.

74210641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005730.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 74210641 is about 8614.5598262477. The cubic root of 74210641 is about 420.2316201648.

Adding to 74210641 its reverse (14601247), we get a palindrome (88811888).

The spelling of 74210641 in words is "seventy-four million, two hundred ten thousand, six hundred forty-one".