74316409 has 8 divisors (see below), whose sum is σ = 75576200. Its totient is φ = 73063296.

The previous prime is 74316383. The next prime is 74316419. The reversal of 74316409 is 90461347.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47224384 + 27092025 = 6872^2 + 5205^2 .

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 74316409 - 2⁵ = 74316377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74316419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24019 + ... + 26935.

It is an arithmetic number, because the mean of its divisors is an integer number (9447025).

Almost surely, 2^74316409 is an apocalyptic number.

It is an amenable number.

74316409 is a deficient number, since it is larger than the sum of its proper divisors (1259791).

74316409 is a wasteful number, since it uses less digits than its factorization.

74316409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 74316409 is about 8620.6965495834. The cubic root of 74316409 is about 420.4311690803.

The spelling of 74316409 in words is "seventy-four million, three hundred sixteen thousand, four hundred nine".