74405 has 8 divisors (see below), whose sum is σ = 93312. Its totient is φ = 56848.

The previous prime is 74383. The next prime is 74411. The reversal of 74405 is 50447.

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 74405 - 2⁸ = 74149 is a prime.

It is a super-2 number, since 2×74405² = 11072208050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209 + ... + 438.

It is an arithmetic number, because the mean of its divisors is an integer number (11664).

2⁷⁴⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

74405 is a deficient number, since it is larger than the sum of its proper divisors (18907).

74405 is a wasteful number, since it uses less digits than its factorization.

74405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 74405 is about 272.7727992304. The cubic root of 74405 is about 42.0598165072.

The spelling of 74405 in words is "seventy-four thousand, four hundred five".