74322409 has 8 divisors (see below), whose sum is σ = 85199168. Its totient is φ = 63510480.

The previous prime is 74322397. The next prime is 74322481. The reversal of 74322409 is 90422347.

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 74322409 - 2¹⁹ = 73798121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74320409) by changing a digit.

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, 13722 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (10649896).

Almost surely, 2^74322409 is an apocalyptic number.

It is an amenable number.

74322409 is a deficient number, since it is larger than the sum of its proper divisors (10876759).

74322409 is a wasteful number, since it uses less digits than its factorization.

74322409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32415.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 74322409 is about 8621.0445422814. The cubic root of 74322409 is about 420.4424834014.

The spelling of 74322409 in words is "seventy-four million, three hundred twenty-two thousand, four hundred nine".