74409 has 8 divisors (see below), whose sum is σ = 105120. Its totient is φ = 46656.

The previous prime is 74383. The next prime is 74411. The reversal of 74409 is 90447.

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

It is not a de Polignac number, because 74409 - 2⁵ = 74377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74419) by changing a digit.

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, 679 + ... + 780.

It is an arithmetic number, because the mean of its divisors is an integer number (13140).

2⁷⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

74409 is a deficient number, since it is larger than the sum of its proper divisors (30711).

74409 is a wasteful number, since it uses less digits than its factorization.

74409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 74409 is about 272.7801312413. The cubic root of 74409 is about 42.0605702032.

The spelling of 74409 in words is "seventy-four thousand, four hundred nine".