74985218 has 64 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 27820800.

The previous prime is 74985203. The next prime is 74985227. The reversal of 74985218 is 81258947.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539393 + ... + 539531.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^74985218 is an apocalyptic number.

74985218 is a deficient number, since it is larger than the sum of its proper divisors (72102142).

74985218 is a wasteful number, since it uses less digits than its factorization.

74985218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303.

The product of its digits is 161280, while the sum is 44.

The square root of 74985218 is about 8659.4005566205. The cubic root of 74985218 is about 421.6886250046.

The spelling of 74985218 in words is "seventy-four million, nine hundred eighty-five thousand, two hundred eighteen".