42228811 has 16 divisors (see below), whose sum is σ = 45964800. Its totient is φ = 38664000.

The previous prime is 42228793. The next prime is 42228829. The reversal of 42228811 is 11882224.

It is an interprime number because it is at equal distance from previous prime (42228793) and next prime (42228829).

It is a cyclic number.

It is not a de Polignac number, because 42228811 - 2¹¹ = 42226763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42228811.

It is not an unprimeable number, because it can be changed into a prime (42228311) 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 15 ways as a sum of consecutive naturals, for example, 117450 + ... + 117808.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^42228811 is an apocalyptic number.

42228811 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42228811 is a deficient number, since it is larger than the sum of its proper divisors (3735989).

42228811 is a wasteful number, since it uses less digits than its factorization.

42228811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570.

The product of its digits is 2048, while the sum is 28.

The square root of 42228811 is about 6498.3698725142. The cubic root of 42228811 is about 348.2327542970.

The spelling of 42228811 in words is "forty-two million, two hundred twenty-eight thousand, eight hundred eleven".