74524 has 12 divisors (see below), whose sum is σ = 134848. Its totient is φ = 36000.

The previous prime is 74521. The next prime is 74527. The reversal of 74524 is 42547.

It is an interprime number because it is at equal distance from previous prime (74521) and next prime (74527).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 74495 and 74504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74521) 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 3 ways as a sum of consecutive naturals, for example, 177 + ... + 424.

2⁷⁴⁵²⁴ is an apocalyptic number.

It is an amenable number.

74524 is a deficient number, since it is larger than the sum of its proper divisors (60324).

74524 is a wasteful number, since it uses less digits than its factorization.

74524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its digits is 1120, while the sum is 22.

The square root of 74524 is about 272.9908423372. The cubic root of 74524 is about 42.0822274214.

The spelling of 74524 in words is "seventy-four thousand, five hundred twenty-four".