74520305 has 16 divisors (see below), whose sum is σ = 91687680. Its totient is φ = 58126848.

The previous prime is 74520301. The next prime is 74520317. The reversal of 74520305 is 50302547.

It is a cyclic number.

It is not a de Polignac number, because 74520305 - 2² = 74520301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74520301) 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 15 ways as a sum of consecutive naturals, for example, 31649 + ... + 33921.

It is an arithmetic number, because the mean of its divisors is an integer number (5730480).

Almost surely, 2^74520305 is an apocalyptic number.

It is an amenable number.

74520305 is a deficient number, since it is larger than the sum of its proper divisors (17167375).

74520305 is a wasteful number, since it uses less digits than its factorization.

74520305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 74520305 is about 8632.5144077493. The cubic root of 74520305 is about 420.8153191213.

The spelling of 74520305 in words is "seventy-four million, five hundred twenty thousand, three hundred five".