42771223 has 16 divisors (see below), whose sum is σ = 50451840. Its totient is φ = 35834400.

The previous prime is 42771221. The next prime is 42771233. The reversal of 42771223 is 32217724.

It is a cyclic number.

It is not a de Polignac number, because 42771223 - 2¹ = 42771221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42771191 and 42771200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42771221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4968 + ... + 10498.

It is an arithmetic number, because the mean of its divisors is an integer number (3153240).

Almost surely, 2^42771223 is an apocalyptic number.

42771223 is a deficient number, since it is larger than the sum of its proper divisors (7680617).

42771223 is a wasteful number, since it uses less digits than its factorization.

42771223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598.

The product of its digits is 4704, while the sum is 28.

The square root of 42771223 is about 6539.9711773065. The cubic root of 42771223 is about 349.7173854641.

Adding to 42771223 its reverse (32217724), we get a palindrome (74988947).

The spelling of 42771223 in words is "forty-two million, seven hundred seventy-one thousand, two hundred twenty-three".