74384905 has 16 divisors (see below), whose sum is σ = 107383680. Its totient is φ = 48321792.

The previous prime is 74384881. The next prime is 74384909. The reversal of 74384905 is 50948347.

It is a cyclic number.

It is not a de Polignac number, because 74384905 - 2⁷ = 74384777 is a prime.

It is a super-2 number, since 2×74384905² = 11066228183718050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74384909) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 55264 + ... + 56593.

It is an arithmetic number, because the mean of its divisors is an integer number (6711480).

Almost surely, 2^74384905 is an apocalyptic number.

It is an amenable number.

74384905 is a deficient number, since it is larger than the sum of its proper divisors (32998775).

74384905 is a wasteful number, since it uses less digits than its factorization.

74384905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111888.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 74384905 is about 8624.6683994227. The cubic root of 74384905 is about 420.5602971818.

The spelling of 74384905 in words is "seventy-four million, three hundred eighty-four thousand, nine hundred five".