42228084 has 24 divisors (see below), whose sum is σ = 99141280. Its totient is φ = 13989024.

The previous prime is 42228083. The next prime is 42228103. The reversal of 42228084 is 48082224.

It is a super-2 number, since 2×42228084² = 3566422156622112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42228083) 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 7 ways as a sum of consecutive naturals, for example, 8839 + ... + 12750.

Almost surely, 2^42228084 is an apocalyptic number.

It is an amenable number.

42228084 is an abundant number, since it is smaller than the sum of its proper divisors (56913196).

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

42228084 is a wasteful number, since it uses less digits than its factorization.

42228084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21759 (or 21757 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 42228084 is about 6498.3139351681. The cubic root of 42228084 is about 348.2307559246.

The spelling of 42228084 in words is "forty-two million, two hundred twenty-eight thousand, eighty-four".