74930 has 16 divisors (see below), whose sum is σ = 138240. Its totient is φ = 29232.

The previous prime is 74929. The next prime is 74933. The reversal of 74930 is 3947.

It is a super-2 number, since 2×74930² = 11229009800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74896 and 74905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74933) 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, 527 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁷⁴⁹³⁰ is an apocalyptic number.

74930 is a deficient number, since it is larger than the sum of its proper divisors (63310).

74930 is a wasteful number, since it uses less digits than its factorization.

74930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 74930 is about 273.7334469881. The cubic root of 74930 is about 42.1585091175.

The spelling of 74930 in words is "seventy-four thousand, nine hundred thirty".