57223386 has 96 divisors (see below), whose sum is σ = 142129728. Its totient is φ = 16485120.

The previous prime is 57223367. The next prime is 57223399. The reversal of 57223386 is 68332275.

57223386 is a `hidden beast` number, since 57 + 223 + 386 = 666.

57223386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57223386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 534745 + ... + 534851.

It is an arithmetic number, because the mean of its divisors is an integer number (1480518).

Almost surely, 2^57223386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57223386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71064864).

57223386 is an abundant number, since it is smaller than the sum of its proper divisors (84906342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57223386 is a wasteful number, since it uses less digits than its factorization.

57223386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 233 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 57223386 is about 7564.6140681465. The cubic root of 57223386 is about 385.3522070698.

Subtracting 57223386 from its reverse (68332275), we obtain a square (11108889 = 3333²).

The spelling of 57223386 in words is "fifty-seven million, two hundred twenty-three thousand, three hundred eighty-six".