74224 has 10 divisors (see below), whose sum is σ = 143840. Its totient is φ = 37104.

The previous prime is 74219. The next prime is 74231. The reversal of 74224 is 42247.

It is a congruent number.

It is an unprimeable number.

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, 2304 + ... + 2335.

It is an arithmetic number, because the mean of its divisors is an integer number (14384).

2⁷⁴²²⁴ is an apocalyptic number.

It is an amenable number.

74224 is a deficient number, since it is larger than the sum of its proper divisors (69616).

74224 is a wasteful number, since it uses less digits than its factorization.

74224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4641 counting only the distinct ones).

The product of its digits is 448, while the sum is 19.

The square root of 74224 is about 272.4408192617. The cubic root of 74224 is about 42.0256834596.

The spelling of 74224 in words is "seventy-four thousand, two hundred twenty-four", and thus it is an iban number.