57446 has 4 divisors (see below), whose sum is σ = 86172. Its totient is φ = 28722.

The previous prime is 57427. The next prime is 57457. The reversal of 57446 is 64475.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

57446 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 14360 + ... + 14363.

It is an arithmetic number, because the mean of its divisors is an integer number (21543).

2⁵⁷⁴⁴⁶ is an apocalyptic number.

57446 is a deficient number, since it is larger than the sum of its proper divisors (28726).

57446 is a wasteful number, since it uses less digits than its factorization.

57446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28725.

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

The square root of 57446 is about 239.6789519336. The cubic root of 57446 is about 38.5851267566.

Adding to 57446 its product of digits (3360), we get a palindrome (60806).

The spelling of 57446 in words is "fifty-seven thousand, four hundred forty-six".