42242227 has 4 divisors (see below), whose sum is σ = 42872776. Its totient is φ = 41611680.

The previous prime is 42242173. The next prime is 42242251. The reversal of 42242227 is 72224224.

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

It is a cyclic number.

It is not a de Polignac number, because 42242227 - 2¹¹ = 42240179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42242267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315174 + ... + 315307.

It is an arithmetic number, because the mean of its divisors is an integer number (10718194).

Almost surely, 2^42242227 is an apocalyptic number.

42242227 is a deficient number, since it is larger than the sum of its proper divisors (630549).

42242227 is an equidigital number, since it uses as much as digits as its factorization.

42242227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630548.

The product of its digits is 3584, while the sum is 25.

The square root of 42242227 is about 6499.4020494196. The cubic root of 42242227 is about 348.2696279847.

The spelling of 42242227 in words is "forty-two million, two hundred forty-two thousand, two hundred twenty-seven".