74456 has 16 divisors (see below), whose sum is σ = 143640. Its totient is φ = 36160.

The previous prime is 74453. The next prime is 74471. The reversal of 74456 is 65447.

74456 is nontrivially palindromic in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74453) 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, 215 + ... + 441.

2⁷⁴⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

74456 is a deficient number, since it is larger than the sum of its proper divisors (69184).

74456 is a wasteful number, since it uses less digits than its factorization.

74456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 270 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 74456 is about 272.8662676111. The cubic root of 74456 is about 42.0694241085.

Subtracting from 74456 its reverse (65447), we obtain a palindrome (9009).

The spelling of 74456 in words is "seventy-four thousand, four hundred fifty-six".