42224229 has 12 divisors (see below), whose sum is σ = 61047532. Its totient is φ = 28123200.

The previous prime is 42224227. The next prime is 42224249. The reversal of 42224229 is 92242224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39204 + 42185025 = 198^2 + 6495^2 .

It is not a de Polignac number, because 42224229 - 2¹ = 42224227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15489 + ... + 18009.

Almost surely, 2^42224229 is an apocalyptic number.

It is an amenable number.

42224229 is a deficient number, since it is larger than the sum of its proper divisors (18823303).

42224229 is a wasteful number, since it uses less digits than its factorization.

42224229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388 (or 4385 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 42224229 is about 6498.0173129963. The cubic root of 42224229 is about 348.2201589452.

The spelling of 42224229 in words is "forty-two million, two hundred twenty-four thousand, two hundred twenty-nine".