42228368 has 120 divisors (see below), whose sum is σ = 106743168. Its totient is φ = 15814656.

The previous prime is 42228349. The next prime is 42228371. The reversal of 42228368 is 86382224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435296 + ... + 435392.

Almost surely, 2^42228368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42228368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53371584).

42228368 is an abundant number, since it is smaller than the sum of its proper divisors (64514800).

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

42228368 is a wasteful number, since it uses less digits than its factorization.

42228368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 142 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 42228368 is about 6498.3357869535. The cubic root of 42228368 is about 348.2315365845.

The spelling of 42228368 in words is "forty-two million, two hundred twenty-eight thousand, three hundred sixty-eight".