74830 has 16 divisors (see below), whose sum is σ = 154080. Its totient is φ = 25632.

The previous prime is 74827. The next prime is 74831. The reversal of 74830 is 3847.

It is a plaindrome in base 16.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74831) 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, 465 + ... + 604.

It is an arithmetic number, because the mean of its divisors is an integer number (9630).

2⁷⁴⁸³⁰ is an apocalyptic number.

74830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74830 is an abundant number, since it is smaller than the sum of its proper divisors (79250).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77040).

74830 is a wasteful number, since it uses less digits than its factorization.

74830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 74830 is about 273.5507265573. The cubic root of 74830 is about 42.1397461486.

The spelling of 74830 in words is "seventy-four thousand, eight hundred thirty".