74338309 has 8 divisors (see below), whose sum is σ = 76486400. Its totient is φ = 72220896.

The previous prime is 74338301. The next prime is 74338333. The reversal of 74338309 is 90383347.

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 74338309 - 2³ = 74338301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74338301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2709 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (9560800).

Almost surely, 2^74338309 is an apocalyptic number.

It is an amenable number.

74338309 is a deficient number, since it is larger than the sum of its proper divisors (2148091).

74338309 is a wasteful number, since it uses less digits than its factorization.

74338309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15339.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 74338309 is about 8621.9666550039. The cubic root of 74338309 is about 420.4724634075.

It can be divided in two parts, 74338 and 309, that added together give a palindrome (74647).

The spelling of 74338309 in words is "seventy-four million, three hundred thirty-eight thousand, three hundred nine".