42266228 has 24 divisors (see below), whose sum is σ = 75825288. Its totient is φ = 20606976.

The previous prime is 42266227. The next prime is 42266239. The reversal of 42266228 is 82266224.

42266228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16337764 + 25928464 = 4042^2 + 5092^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42266194 and 42266203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42266221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40400 + ... + 41432.

It is an arithmetic number, because the mean of its divisors is an integer number (3159387).

Almost surely, 2^42266228 is an apocalyptic number.

It is an amenable number.

42266228 is a deficient number, since it is larger than the sum of its proper divisors (33559060).

42266228 is a wasteful number, since it uses less digits than its factorization.

42266228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1281 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 42266228 is about 6501.2481878482. The cubic root of 42266228 is about 348.3355749241.

It can be divided in two parts, 4226622 and 8, that multiplied together give a triangular number (33812976 = T₈₂₂₃).

The spelling of 42266228 in words is "forty-two million, two hundred sixty-six thousand, two hundred twenty-eight".