42228146 has 16 divisors (see below), whose sum is σ = 67329600. Its totient is φ = 19806768.

The previous prime is 42228143. The next prime is 42228163. The reversal of 42228146 is 64182224.

It is not an unprimeable number, because it can be changed into a prime (42228143) 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, 1481 + ... + 9308.

It is an arithmetic number, because the mean of its divisors is an integer number (4208100).

Almost surely, 2^42228146 is an apocalyptic number.

42228146 is a deficient number, since it is larger than the sum of its proper divisors (25101454).

42228146 is a wasteful number, since it uses less digits than its factorization.

42228146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10913.

The product of its digits is 6144, while the sum is 29.

The square root of 42228146 is about 6498.3187056346. The cubic root of 42228146 is about 348.2309263507.

The spelling of 42228146 in words is "forty-two million, two hundred twenty-eight thousand, one hundred forty-six".