74089305 has 24 divisors (see below), whose sum is σ = 128648520. Its totient is φ = 39444480.

The previous prime is 74089289. The next prime is 74089307. The reversal of 74089305 is 50398047.

It can be written as a sum of positive squares in 4 ways, for example, as 20331081 + 53758224 = 4509^2 + 7332^2 .

It is not a de Polignac number, because 74089305 - 2⁴ = 74089289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74089305.

It is not an unprimeable number, because it can be changed into a prime (74089307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33535 + ... + 35675.

It is an arithmetic number, because the mean of its divisors is an integer number (5360355).

Almost surely, 2^74089305 is an apocalyptic number.

It is an amenable number.

74089305 is a deficient number, since it is larger than the sum of its proper divisors (54559215).

74089305 is a wasteful number, since it uses less digits than its factorization.

74089305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 74089305 is about 8607.5144495958. The cubic root of 74089305 is about 420.0024659719.

The spelling of 74089305 in words is "seventy-four million, eighty-nine thousand, three hundred five".