42865227 has 16 divisors (see below), whose sum is σ = 63700000. Its totient is φ = 28488672.

The previous prime is 42865223. The next prime is 42865247. The reversal of 42865227 is 72256824.

42865227 is a `hidden beast` number, since 428 + 6 + 5 + 227 = 666.

It is not a de Polignac number, because 42865227 - 2² = 42865223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42865191 and 42865200.

It is not an unprimeable number, because it can be changed into a prime (42865223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7149 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (3981250).

Almost surely, 2^42865227 is an apocalyptic number.

42865227 is a deficient number, since it is larger than the sum of its proper divisors (20834773).

42865227 is a wasteful number, since it uses less digits than its factorization.

42865227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907 (or 4901 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 42865227 is about 6547.1541145753. The cubic root of 42865227 is about 349.9734047819.

It can be divided in two parts, 428652 and 27, that multiplied together give a square (11573604 = 3402²).

The spelling of 42865227 in words is "forty-two million, eight hundred sixty-five thousand, two hundred twenty-seven".