74005405 has 8 divisors (see below), whose sum is σ = 89199072. Its totient is φ = 58942608.

The previous prime is 74005387. The next prime is 74005417. The reversal of 74005405 is 50450047.

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

It is a cyclic number.

It is not a de Polignac number, because 74005405 - 2¹⁵ = 73972637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74005405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31467 + ... + 33736.

It is an arithmetic number, because the mean of its divisors is an integer number (11149884).

Almost surely, 2^74005405 is an apocalyptic number.

It is an amenable number.

74005405 is a deficient number, since it is larger than the sum of its proper divisors (15193667).

74005405 is a wasteful number, since it uses less digits than its factorization.

74005405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65435.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 74005405 is about 8602.6394205500. The cubic root of 74005405 is about 419.8438667575.

The spelling of 74005405 in words is "seventy-four million, five thousand, four hundred five".