74081905 has 8 divisors (see below), whose sum is σ = 90965952. Its totient is φ = 57887088.

The previous prime is 74081879. The next prime is 74081923. The reversal of 74081905 is 50918047.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74081905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 172069 + ... + 172498.

It is an arithmetic number, because the mean of its divisors is an integer number (11370744).

Almost surely, 2^74081905 is an apocalyptic number.

It is an amenable number.

74081905 is a deficient number, since it is larger than the sum of its proper divisors (16884047).

74081905 is a wasteful number, since it uses less digits than its factorization.

74081905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344615.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 74081905 is about 8607.0845819011. The cubic root of 74081905 is about 419.9884822994.

The spelling of 74081905 in words is "seventy-four million, eighty-one thousand, nine hundred five".