74318 has 4 divisors (see below), whose sum is σ = 111480. Its totient is φ = 37158.

The previous prime is 74317. The next prime is 74323. The reversal of 74318 is 81347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81347 = 7 ⋅11621.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 74293 and 74302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74311) 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 as a sum of consecutive naturals, namely, 18578 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (27870).

2⁷⁴³¹⁸ is an apocalyptic number.

74318 is a deficient number, since it is larger than the sum of its proper divisors (37162).

74318 is a wasteful number, since it uses less digits than its factorization.

74318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37161.

The product of its digits is 672, while the sum is 23.

The square root of 74318 is about 272.6132792070. The cubic root of 74318 is about 42.0434169320.

It can be divided in two parts, 74 and 318, that multiplied together give a palindrome (23532).

The spelling of 74318 in words is "seventy-four thousand, three hundred eighteen".